Katy Perry says she has to be careful not to be 'fat Elvis' during Las Vegas residency

Duolingo Shocks Twitter With Very Suggestive Katy Perry Tweet

'American Idol' Judges Lionel Richie, Luke Bryan and Katy Perry Pay Tribute to Willie Spence After His Death

Katy Nichole & Big Daddy Weave Top Hot Christian Songs With ‘God Is in This Story’