The Biggest Celeb Transformations Of 2015

The hottest beauty topic of 2015? Oh, just Kylie Jenner's overinflated lips. Her pout even led to the Kylie Jenner Lip Challenge, where young and impressionable kids tried to mimic her pucker. At first, the teen claimed her trout pout was the result her deft lip-liner skills. She later admitted to getting temporary fillers on Keeping Up With The Kardashians. Her puffy lips made her look older, sexier, and not like her prior self. She also rocked mermaid blue hair this summer and went blonde for New York Fashion Week. Oh, and if you scan her Instagram feed, you'll notice she sometimes wears blue contact lenses. Clearly, the youngest spawn of Kris Jenner has become quite a style-chameleon.

The most famous Kardashian is expecting her second child, so she once again showed off big and beautiful curves. But Kimmy blew everyone away when she ditched her long, dark, glossy, and familiar locks in favor of a very blonde 'do in the spring. It was a pitstop at platinum—one she showed off while traipsing around Europe for Fashion Week and on the cover of an international edition of Vogue. She quickly returned to brunette. The reality diva also admitted Madonna was her source of inspiration for her platinum locks.

Leto had become known for his man bun, but that was so 2014. He ditched the long locks and rocked a platinum blonde hair hue that made him look like designer Karl Lagerfeld. Also, for his role as the Joker in Suicide Squad, the actor morphed again, with lots of fake tattoos, a grill, a gaunt appearance, and green hair. He got rid of the green strands when filming wrapped.

The Biebs has been adding to his copious tattoo collection for years. He displayed his ink and his rock hard, washboard abs in both Calvin Klein ads and on the cover of Men's Health this year. He was also seen with a man bun in the spring, attempting to usurp Jared Leto's man bun throne. But the singer showed off a totally different look at the VMAs, when he rocked a bleached blonde coif that looked like Draco Malfoy cross-pollinated with a German rave DJ. But let's be clear: that's not a compliment. It was... weird. Bring back those signature, swoopy side bangs, Biebs!

The singer and actress has gone shorter and shorter with her hair, which has been every color of the rainbow. She now has a bob. Lovato also ditched her all-black, leather-and-studs rocker chick look in favor of a sexier, skimpier style. She unveiled an uber-sexy style when she began promoting her new single "Cool for the Summer." She swapped out her usual monochromatic clothes for fur, pops of color, and heels.

While 2014 was her breakthrough year, the "Fancy" rapper canceled her tour, fought with many rappers on Twitter, and took a hiatus from social media. If that wasn't enough, she also found time to get a nose job. However, she didn't try to hide or deny the rhinoplasty. She was frank about her augmentation and confessed to getting a nose job in a chat with Seventeen, saying, "I don't think you should be ashamed if you made a change to yourself, which is why I've spoken about the changes I've made, like with my breasts." Ah, yes—earlier this year, Azalea told Vogue she got breast implants. Altogether, Iggy's 2015 may have brought some of the biggest transformations, second only to Caitlyn Jenner, of course.

The Fantastic Four actress has been getting progressively shorter with her coif. She had a lob aka a long bob for quite some time. But while promoting her ill-fated comic book film, she was out and about with a super short, Mia Farrow-esque pixie. She even admitted that her father said he didn't dig this 'do when she appeared on Live! With Kelly and Michael. Well, we'd have to say that he's alone in that opinion.