Hailee Steinfeld, Niall Horan Spark Dating Rumors

Are the Pitch Perfect star and former One Direction singer an item?

Hailee Steinfeld and Niall Horan were spotted together at a Backstreet Boys concert in Las Vegas on Saturday, Feb. 17, 2018, Us Weekly reports — further fueling recent rumors that the pair might be dating.

The following day, a Twitter user posted several videos of the two laughing, dancing, and singing along to the boy band's biggest hits, like "I Want It That Way" and "Everybody." 

During their alleged date night, Steinfeld, 21, rocked a black top with blue jeans, while the 24-year-old "Slow Hands" singer, who was rumored to be crushing on Katy Perry last year, sported a plaid shirt and jeans. After taking in the concert, they headed over to the XS Nightclub to watch Diplo spin a set as they hung out with a group of friends.

While Steinfeld and Horan, who have been friends for years, have yet to comment on the current status of their relationship, fans began to speculate that the pair might be a couple after they attended the West End production of Hamilton together in London in early January. 

Just a few weeks earlier, Horan shared a sweet birthday message with the Begin Again actress on Instagram. "Happy birthday to the loveliest person on the planet and one of my best friends @haileesteinfeld," he captioned a cute snapshot of the two. "Have no idea what the hell is going on in this photo. Love ya hails."

While speaking with Us Weekly in January 2018, Steinfeld, who was previously romantically linked with Justin Bieber, did little to squash the lingering hearsay of their apparent romance. However, it sounds like fans won't be hearing a confirmation either way any time soon.

"I feel so lucky that [my fans] care enough about me to know what I'm doing every second of every day, but I think that sometimes it's hard for people, in general, to realize that there are boundaries to a person's life and personal life. I am a very private person," the "Most Girls" singer said. "I do love that I have the opportunity to share with them what I'm comfortable with and they're there to listen and support me."