katy perry

If you haven't heard these two songs together to compare them, then you may not have realized just how similar they are! We were shocked!

The 2013 MTV VMAs were held in Brooklyn and the stars were looking mighty fine. Some were dressy. Others went more casual and street. But most of our pop faves turned heads, with grills, gothy locks and more. Check out the PopCrush rundown of the red carpet.

The entire 2013 MTV VMA red carpet heard Katy Perry "ROAR" as she modeled a leopard print dress -- and some wacky grills! At least she kept her hair simple and slicked back in a ponytail. So much for that toned down look we thought she adapted...

The 2013 MTV Video Music Awards are a place for artists to take risks and show off their fiercest style. Unfortunately, sometimes style can be so fierce that it, well, bites. Check out the best and worst dressed ladies of the evening below...

Thanks to PEPSI and MTV, Katy Perry fans were able to tweet the #KatyNOW! hashtag to unlock two brand new song titles from 'Prism,' out Oct. 22.

Katy Perry got revelatory, calling in to 'ROAR' on Ryan Seacrest's morning radio show.

Katy Perry dropped the fourth (and final, we think) 'ROAR' teaser today (Aug. 9) so it's 'ROAR 4.' In it, we hear MORE MUSIC...with vocals!

RAWR for 'ROAR!'

Katy Perry lights it up in the video teaser for her new single 'Roar.' Or 'ROAR,' as was rumored when some sort of fake press release was issued. The "it" being incinerated is the wig from her 'Teenage Dream' album cycle, which she promptly set on fire. No hesitation. No emotion.

Katy Perry clearly has enough fireworks in her love life -- as she took great care not to ignite anger and jealousy from Kristen Stewart over her relationship with Robert Pattinson, letting K Stew know that Katy's relationship with R Pattz was strictly platonic.

If the matching patriotic shirts from Fourth of July didn't convince you that John Mayer and Katy Perry were an item and "on" again, perhaps this video of Mayer, revealing how and why he fell in love with "my Katy" while performing a 'A Face to Call Home,' will...

Singer Katy Perry is friends with Kristen Stewart and Robert Pattinson, but when the collective Robsten broke up, Perry started spending a lot of time with Pattinson -- so much so that lots of people are wondering if they're hooking up. And Stewart is none too pleased.