Katy Perry's Workout Nip Slip!

Katy Perry had a nip slip at the gym.

Katy Perry breast pumps on video to encourage people to vote

Katy Perry News, Gossip & Photos

Katy Perry, Britney Spears, Jennifer Lopez: Best female performances in sparkly, nude ensembles

Daisy Lowe's blushes are saved by a well-placed button as she wears VERY low-cut black dress - and her cleavage even attracts Katy Perry's attention

Cast & Creative Magic Mike Live Las Vegas

This is pop that is not fit for purpose – Katy Perry, Witness, review

Orlando Bloom wanted Katy Perry to get naked too during paddleboard romp, but she was 'not in the mood' – New York Daily News

American Idol judge Katy Perry nearly suffers NSFW wardrobe malfunction in strapless gown in new photos

Katy Perry's See-Through Sides, Jared Leto's Ridiculous Method Acting, and Much, Much More

Katy Perry Jokes She'll Be Married 8 Times - ABC News

Katy Perry News, Gossip & Photos

Katy Perry stuns as she shows skin in sexy sheer orange number with cutouts for American Idol finale

Katy Perry's 'Teenage Dream': The Story Behind the Album Cover

Katy Perry's Legs Look Seriously Toned In A Corset Dress