Katy Perry KIIS FM Jingle BalI

International pop star Katy Perry arrived last night at LA’s Nokia Theatre for KIIS Jingle Ball 2010 where she also delighted the audience with a performance.

Looking fab as usual Katy, who recently performed on the USO presented show Vh1 Divas Salute the Troops and appeared on The Simpsons Christmas special, donned a purple sequined cocktail dress with lace detailing on the sleeves and skirt.

Later in the evening Katy was transformed in to a sexy snowman, wearing a ballooned out white dress and a ribbon-fitted cap.

Merry Christmas Katy!