From pop princess to Hollywood glamour
In true Katy Perry style she took a literal approach to her outfit for the performance.
As well as the film reels, Katy wore high-waist hotpants covered in pictures of American sweet treats like Reese’s Pieces and Starburst. Yum!
Later on for the red carpet, Katy turned up the glamour in this amazing red velvet strapless 50s style gown.
She paired the dress with matching red heels and a cute cake shaped clutch bag.
Katy wore her hair in waves and added a slick of red lipstick and false lashes to complete the look.
Which look do you like best? Comments please!