Acts like Tove Lo, Ed Sheeran and Goldfrapp will also hit the stage this June.
Katy Perry - Page 2
Katy Bell, 18, was killed in a head-on car crash.
'Still Feel Like Your Man' is exactly what it sounds like, Mayer admitted.
Katy Perry was honored with the National Equality Award for her pro-LGBTQ work.
Check out everything we know about Katy Perry's forthcoming fourth studio album, from confirmed collaborators to new music snippets and more.
Judge Stephanie Bowick echoed her April decision that Sister Rita Callanan and Sister Catherine Rose can't block Katy Perry's deal with a Roman Catholic Archbishop.
Katy's 'compelling advocacy, from the stage to the campaign trail, has had a profound effect on the lives of LGBTQ people,' HRC president Chad Griffin said.
See how much pop stars like Rihanna, Britney Spears and more have changed their look since their music video debut.
Watch performances from Bruno Mars, Katy Perry, Ed Sheeran, Shawn Mendes and more.
Katy Perry chopped off all her hair and now, according to fans on Instagram, she looks like Miley Cyrus.