What Are Katy Perry's Hottest Looks?

Katy's Daring Green Dress 1 of 16

Katy Perry's revealing dress made a big splash at the 55th Grammy Awards. This award ceremony has very strict wardrobe requirements, but she pushed the limits to wear this extremely low-cut Gucci dress. Katy's cleavage even made Ellen DeGeneres' jaw drop at the sight!

Keep reading to see more of Katy Perry's hottest looks!