Stars Who Revealed The Rudest Celebs They Ever Met

The following article includes brief mentions of religious abuse allegations and suicide.

Not every celebrity can say they hold the heartwarming title of "Hollywood's Nice Guy," like industry vet Tom Hanks and so-called "internet boyfriend" Keanu Reeves. On one side are the stars everyone loves working with, while the other boasts some of the most arrogant and shady of A-listers that popular peers simply can't stand. Somewhere in the middle are those famous faces who might hide behind the guise of their public persona, shaking hands, posing with fans, and never once taking off the PR mask they so cleverly wear. 

That being said, nobody's perfect and celebrities aren't machines. We all have bad days, slip-ups, and moments where we just don't want to be bothered. But if a celeb shares a rude encounter with another star, you best believe it'll be the talk of Tinseltown. While not everyone is petty enough to put all the people that have wronged them on full blast (yes, we mean Kim Kardashian's epic "burn book"), others have publicly let slip a few awkward run-ins they've had. 

Although our title shouldn't be taken literally in all cases, let's all gasp in wonder at some remarkably rude celebrity interactions — as dished by a handful of Hollywood's own elite.

Gene Simmons may look scary with all the makeup he wears as the bassist in KISS, but nobody would have thought he'd be ... rude to the elderly. Wait, what? 

It all started when "Modern Family's" Eric Stonestreet shared a series of texts from his mom, Jamey, on Instagram in 2014. "I think [Gene] Simmons is on my flight. Do you think I should go give him a kiss," she jokingly texted (via the Daily Mail), to which her famous son quipped, "Yes. With tongue." However, it wasn't long until Stonestreet publicly put Simmons and bandmate Paul Stanley on blast. "Gene tried to bully my mom out of her seat and when she said no, he said, 'it's ok, I just bought the plane' and then asked her for HER autograph," the actor claimed in a text-post on Twitter. Calling it a "d**k move," Stonestreet added, "I can't wait to run into you two old a** makeup wearing f**ks and tell you in person; you should have been nicer to my mom." Uh-oh.

Simmons denied the entire situation in a series of since-deleted tweets, which included the message: "LOOK, I HAVE A MOTHER, TOO." Meanwhile, Stanley squashed the beef by apologizing to the mother-son duo. As for Stonestreet? He thanked Stanley, adding, "I will tape my glow in the dark KISS posters back together."

Christina Aguilera has built quite the reputation for not being the friendliest person among Hollywood's elite. One celeb this pop star apparently rubbed the wrong way? "One Day at a Time's" own Valerie Bertinelli. 

TV host Andy Cohen asked Bertinelli to dish the dirt on what went on between the two starlets during a 2014 episode of "Watch What Happens Live." While the actor clarified that she and Aguilera didn't have an all-out feud, the "Dirrty" singer did apparently snub her at one of ex-husband Eddie Van Halen's concerts. "I was a fan at that time," Bertinelli began, before alleging, "And I went up to her because she was at a Van Halen concert, and I said, 'Oh my God, I think you're a beautiful singer.' ... And she just went like, 'Yeah, whatever.' She gave me the cold shoulder, and I thought, 'B***h, I'm a fan. You can't be nice to me?'"

After Cohen asked Bertinelli if she'd seen Aguilera since, the "Hot in Cleveland" star replied, "I have not, no. But you know what? She might have gotten better, but I heard she hasn't." Zing. 

Aussie radio host Em Rusciano has probably had her fair share of run-ins with rude celebrities. Considering it's part of her job to speak to A-listers, she surprisingly had no trouble narrowing down the rudest star she'd ever met.

"Easy, lead singer of Snow Patrol," she replied to a fan who'd asked on Instagram in 2018 (via News.com.au). Her story about an interview she and co-host Michael "Wippa" Wipfli conducted with Gary Lightbody made this piece of celeb gossip that much more amusing. "Wippa and I went to interview [the band] ... and they had that one big song on 'Grey's Anatomy' ('Chasing Cars')," Rusciano explained. "We got told, 'Don't ask him about it because he gets angry' but we did because that's all anyone cared about," she continued, before holding up her middle finger and adding, "And he sat for the rest of the interview like this."

Perhaps we can chalk up the entire sitch to Lightbody having an off day, considering he gushed about the iconic track to BBC News years after this interview. "I still have a really deep relationship to that song," he said, adding, "It's a beautiful moment every time you play it." We're sure some "Grey's Anatomy" fans would agree with him there.

Jon Stewart was the legendary host of "The Daily Show" for 16 years, during which he made audiences laugh, cry, and often got political — all while maintaining the perfect balance needed for every situation. For the most part, he was able to handle everything thrown at him, except for one seemingly unbearable celeb who was banned from the comedian's studio: actor Hugh Grant.

In 2012, Stewart spoke with fellow late-night host and bestie Stephen Colbert at a Q&A in New Jersey and revealed that while "The Daily Show's" guests have sometimes included dictators, it was Grant who was "giving everyone s**t the whole time, and he's a big pain in the a**" (via Third Beat Magazine). While promoting his new film at the time, "Did You Hear About the Morgans?" the movie star openly griped about the clip chosen to run on the show. "What is that clip? It's a terrible clip," Grant angrily asked, to which the host shot back, "Well, then make a better f**king movie." Awkward! 

So, what did Grant have to say about this? To his credit, he took to Twitter with some self-deprecating humor: "Turns out my inner crab got the better of me with TV producer in 09. Unforgivable. J Stewart correct to give me kicking."

If you're an A-list celeb, you should probably avoid being rude to an up-and-comer on the rise. Cue 13-year-old Hailee Steinfeld, who was en route home after a successful audition in December 2009. "When I was auditioning for 'True Grit,' I was on the Paramount lot," she later told J-14 (via the Daily Mail). The future "Pitch Perfect" starlet continued, "'Glee' also films on the lot and I love that show. I saw Lea Michele just walking to her trailer. ... So I walked up to her and asked for her autograph, but she walked by and a guy came and said, 'Sorry, now's not a good time!' I was so sad! I was practically crying on the way home." Aww!

Michele later told Gossip Cop (via Just Jared), "I heard Hailee was upset and feel terrible. The 'Glee' schedule is so jam-packed that the PA probably pulled me so that I wouldn't be late to set. I never meant to hurt her feelings. She's an extraordinary talent and I look forward to meeting her one day." 

Squash their unsettling first meeting she did, as the two actors met once again at the 2011 SAG Awards just weeks later — where Michele took the time to pose for a photo with Steinfeld.

For most actors, working with Mike Myers would be a dream. The man has starred in some of the most popular modern comedies, like the "Austin Powers" and "Shrek" trilogies. But unfortunately, not everyone's on-set experience with Myers has been positive. In fact, Amy Hill, who worked with Myers on 2003's "The Cat in the Hat," described her time with him as "a horrible, nightmarish experience" during a 2016 interview with the AV Club.

"I don't think he got to know anybody," Hill continued. "He'd just be with his people and walk away. People would come and then he'd stand there. There was a guy who held his chocolates in a little Tupperware. Whenever he needed chocolate, he'd come running over and give him a chocolate. That's what divas are like, I guess. Or people who need therapy."

Hill, who played Mrs. Kwan in the live-action adaptation of the Dr. Seuss classic, is known for her work in a variety of films and television series, like "50 First Dates," "Mom," and "Crazy Ex-Girlfriend." She was also featured on several episodes of "The Naked Truth" in the mid-'90s, another experience she wasn't fond of thanks to the show's star Tea Leoni. "She hated the show and wanted to be off the show and, for the whole season, tried every way to be fired," Hill claimed. "So every episode, rehearsing was hell, and taping was hell."

Lots of celebrities have been accused of diva behavior, and some have even owned it. But perhaps few have been called a diva as many times as Mariah Carey. The elusive chanteuse, though incredibly talented, apparently isn't everyone's cup of celebrity tea — just ask fellow singer Demi Lovato. Back in 2016, the former Disney Channel star made her feelings about Carey perfectly clear. 

"The woman is mean for no reason. Extremely talented? Yes. Superhuman? Possibly. Unnecessarily rude? Absolutely," Lovato commented in a since-deleted Instagram post, as reported by ET. Lovato's comments came on the heels of another later-removed post of Carey's, in which the "Always Be My Baby" hitmaker seemingly dissed Ariana Grande, as well as Carey's infamously continued "I don't know her" comments regarding Jennifer Lopez.

We imagine Lopez, Lovato, and Carey likely won't be gathering any time soon, but whatever distaste Carey did or didn't have for Grande must have dissipated. In 2020, the two — along with Jennifer Hudson — collaborated on Carey's Christmas track "Oh Santa!" with Grande even joining Carey at the end to harmonize with the latter's signature whistle tone runs.

Leah Remini and Tom Cruise are both known for their affiliation with the Church of Scientology, but that's where their similarities end — especially given their wildly different views on the controversial religious organization. Remini's made it her mission to reveal the abuse and trauma she and others have allegedly suffered at the hands of the church, while Cruise has remained a committed member.

While filming "Mission: Impossible 7" in December 2020, Cruise was recorded yelling at crew members over COVID-19 safety protocols not being followed, per The Sun. The headline-making incident caused some to quit, and the overall public response was mixed: Some approved of the movie star's message, but others found the rant to be abusive coming from someone in a position of power. For her part, Remini alleged in The Underground Bunker that Cruise's words were a charade, writing, "Tom does not believe in illness." She also claimed, "Tom's reaction that was released yesterday shows his true personality. He is an abusive person. I witnessed it, I've been a recipient of it on a small level, and I've been told of similar abuse by his former girlfriend, his employees, and his friends. This is the real Tom."

Cruise defended himself the following March, however. "I said what I said. There was a lot at stake at that point," he told Empire magazine, the Los Angeles Times reported. Making no mention of Remini's reprimand, Cruise added, "All those emotions were going through my mind. I was thinking about the people I work with, and my industry."

If you or someone you know is dealing with spiritual abuse, you can call the National Domestic Violence Hotline at 1−800−799−7233. You can also find more information, resources, and support at their website.

Bill Maher has been interviewing celebrities on "Real Time with Bill Maher" since 2003, and he's made more than a few enemies in the process. For his part, Anthony Bourdain appeared on the HBO show as a member of a panel in 2011, sharing his thoughts on food and sex. Before his tragic death in June 2018, Bourdain openly shared with Reason his opinion of the controversial comedian.

"Insufferably smug," Bourdain said of Maher in 2016. "Really the worst of the smug, self-congratulatory left. I have a low opinion of him. I did not have an enjoyable experience on his show. Not a show I plan to do again." Bourdain added, "He's a classic example of the smirking, contemptuous, privileged guy who lives in a bubble. And he is in no way looking to reach outside, or even look outside, of that bubble, in an empathetic way."

Maher must not have been too perturbed by the comments as he didn't respond, but the comic did crack a, um, joke at Bourdain's expense just weeks after his death by suicide. While reading a fake headline, Maher said, "Comet destroys Asia. White people on Facebook still talking about Anthony Bourdain."

If you or anyone you know is having suicidal thoughts, please call the National Suicide Prevention Lifeline​ by dialing 988 or by calling 1-800-273-TALK (8255)​.

Rosie Perez and Jennifer Lopez worked together on "In Living Color" in the early '90s — Perez was a choreographer for the sketch comedy show and even fought for Lopez, who appeared in over 60 episodes, to get her big break as a Fly Girl. In her 2014 memoir "Handbook for an Unpredictable Life" (via the New York Post), however, Perez claimed that the "Waiting for Tonight" hitmaker's on-set behavior was inappropriate.

"All of the girls were coming into my office complaining how she was manipulating wardrobe, makeup, and me, all to her advantage," Perez wrote, further claiming that, when she addressed the issue with Lopez, she responded like "some ghetto biatch, screaming and pounding her chest!" Unfortunately, their apparent feud heated up following Lopez's exit from the show, with Perez accusing her of acting faux-friendly despite making "disparaging comments" and then ghosting her. "I was blindsided. I'd thought we were cool," Perez wrote. "I called her up. She wouldn't pick up." Of seeing Lopez at a club shortly after, Perez recalled, "I should've let it go, played it off too. Instead, I killed her with my biting tongue."

On the positive side, it seems that Perez actually holds no ill will toward Lopez these days. "I don't hate Jennifer Lopez. I have great respect for her," she told CNN in 2016, adding, "Yes, we had a tiff, and it was 20 years ago, and I write it in my book. ... I've moved on, and I'm sure she has also."