Katy Perry traded in her colorful short look for a sexy black dress when she attended the Gridlock New Year’s Eve party at Paramount Studios in LA.    Katy, who had her breasts molded for charity earlier n 2008, showed off what she was selling as she left the top few clips undone.

Last night the stars cam eout to help Z100 celerate the holidays with their annual Jingle Balls concert at Madison Square Garden.  Rhianna, Chris Brown, Katy Perry, Lady Gaga, Ashley Tisdale, David Archuleta, Leona Lewis, and more performed or made appearances for the thousands of fans.

Katy Perry got in to the Halloween spirit last night when she dressed up as the late front man to Queen, Freddie Mercury.  Katy was joined by friends dressed as the Joker, Amy Winehouse, Tupac, and more.

Katy Perry performed her smash hit, I Kissed A Girl, at the MTV Latin Awards tonight and discovered that diving into a huge cake, getting covered in icing, and running around the stage can only end on your ass.  Katy thought that running after her band and getting some cake on them would be funny…well [...]

Katy Perry made an appearance on the Today Show this morning to perform her hit song I Kissed a Girl.

The new IT girl on the music scene, Katy Perry, is auctioning off her breasts for a cancer charity.