katy perry

You love who you love, regardless of gender, skin color or religion. That should be the governing principle of life in general -- but it's most certainly the case in the song and video for the John Mayer and Katy Perry duet 'Who You Love.'

Katy Perry followed her somewhat embarrassing performance at the NRJ Awards in France, which saw her lip-sync out of tune before flipping the switch to live, at the finale of British 'X Factor' (Dec. 15). She delivered a memorable performance of her sweeping song 'Unconditionally.'

Katy Perry performed at the NRJ Music Awards in France, (Dec. 14), but the singer's live version wasn't that. At first. She was lip-syncing and it was out of time, Milli Vanilli style. She was stopped by a dude in a suit who said they had a problem with the song. They hit the reset button and then it was … live.

Katy Perry has revealed why she and boyfriend John Mayer broke up last spring and the true reason she split with husband Russell Brand in her January 2014 Marie Claire cover. She looks pretty bangin', BTW!

Katy Perry has notched another mag cover, this time the January 2014 cover of Marie Claire, which is its first-ever Change Your Life issue. Perry would know a little something about that, wouldn't she?

Katy Perry "roared" from Toronto, Canada to be a part of the 'The Grammy Nominations Concert Live!!' (Dec. 6), which announced the 2014 Grammy nominees live from Los Angeles.

The "Grammy Nominations Concert Live-Countdown To Music's Biggest Night' happens tonight on CBS.  As you'd expect, some of the biggest stars in the music business will be part of the one hour show.

Do Katy Perry and Niall Horan have something to tell us?

Katy Perry has been named a UNICEF Goodwill Ambassador. She also performed at the organization's ninth annual Snowflake Ball in NYC (Dec. 3), looking sparkly in silver and resplendent in red while at Cipriani Wall Street.

Katy Perry and John Mayer's duet 'Who You Love,' which appears on his album 'Paradise Valley,' will be the singer-songwriter's next single. Since it's a single, it has to have its own accompanying cover art and it features the couple posing in romantic fashion.

If Santa is making a list and checking it twice to find out who has been naughty and who has been nice this Christmas season, well, Rihanna will certainly be on the former list. She posted some, uh, holiday merriment pics on Instagram and a handful of 'em will make the already red-cheeked St. Nick blush even more.

The 2013 American Music Awards were rife with amazing performances from Katy Perry, Ariana Grande, One Direction, Rihanna, Miley Cyrus, Justin Timberlake, Christina Aguilera, Pitbull featuring Kesha and more. And you can catch them all here!