Katy Perry Joins Women's March on WashingtonCher, Scarlett Johansson and Amy Schumer are also slated to attend.
Artists Respond as President Barack Obama Says Goodbye"Change only happens when ordinary people get involved, get engaged, and come together to demand it," tweeted Usher in response to Obama's speech.
Katy Perry and Orlando Bloom Visit Hospital as Mr. & Mrs. Claus"Never naughty, always nice. The kids at CHLA received a much-deserved visit from Santa and Mrs. Claus ... who happen to look a lot like Katy Perry and Orlando Bloom!"
Katy Perry Belts Alanis Morissette's 'You Oughta Know'Perry shows off her karaoke prowess.
Katy Perry Teases New MusicKaty Perry is hard at work on new music and the pop star recently shared two song clips while in the studio.
Katy Perry is Twitter's Most Followed Celebrity of 2016Following Perry is Justin Bieber and Taylor Swift, the same as last year.
Katy Perry Promises Fury on New AlbumThat album will be coming next year!
Hillary Clinton Presents Katy Perry with Humanitarian Award"I have seen Katy’s commitment to the causes she believes in firsthand, I’ve gotten to spend time with her and I know how deeply she cares about making our world a better place," Clinton said.
Andy Cohen is Pretty Sure Taylor Swift & Katy Perry Aren't FriendsToday in shocking revelations.
Katy Perry Makes $10,000 Donation to Planned Parenthood"My first vow is to support organizations that may have their funding support taken from them in the future by the government.”
Katy Perry Drops Out of China Concert due to 'Family Emergency'Perry was scheduled to appear as the “global ambassador,” alongside OneRepublic, Kobe Bryant and Chinese girl band SNH48.
Artists React to Trump Victory "Do not sit still. Do not weep. MOVE. We are not a nation that will let HATE lead us," Katy Perry tweeted.

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