Katy Perry

The 2015 Billboard Music Awards took over Las Vegas on Sunday (May 17), and while there were many winners, it was Taylor Swift's night.

We compiled a list of 50 celebrities who go by a name different from what they were given at birth.

Illinois congressman Aaron Schock is resigning shortly after questions were raised about his spending habits, including reportedly using campaign money to buy Katy Perry concert tickets.

Katy Perry's lawyers are not happy with an Orlando resident trying to make a quick buck off the now-infamous Left Shark dancer.

What's the song in the new Katy Perry Covergirl commercial? Find out here!

What's a girl to do after she completely nails her 2015 Super Bowl Halftime performance? Get a tattoo to commemorate the iconic event, obvs.

Katy Cats, get ready to 'Roar' -- Katy Perry is reportedly performing at the 2015 Super Bowl Halftime show!

Singers like Lady Gaga, Katy Perry and Miley Cyrus all put on amazing performances, complete with out-of-this-world outfits!

We like to think they're perfect, but the truth is, our favorite pop stars sometimes have a few missteps along the way -- literally.

At the 2014 MTV VMAs last night (Aug. 24), Katy Perry brought some major nostalgia with her red carpet dress! The singer and her date Riff Raff channeled Britney Spears and Justin Timberlake's iconic all-denim outfits from the 2001 American Music Awards.

We've all heard of the crazy things musicians want in their dressing rooms when they perform. JLo is rumored to demand only white candles and furniture. Madonna won't go on stage if there isn't a new toilet seat in her dressing room backstage at her concerts. And who can forget the infamous brown M&Ms concert rider in Van Halen's contracts? Well, the NFL has a contract rider of it's own -