Katy Perry: Gucci's Chime for Change Campaign!

Katy Perry shows off her fabulous figure as she leaves her gym on Wednesday (April 17) in Los Angeles.

The 28-year-old singer recently took part in a campaign, Gucci’s A-list Chime For Change campaign, which urges women to come together for global issues such as justice, healthcare, etc.

“If I feel strongly about something, the whole world will know within seconds” Katy said for the cause.

Also featured are Blake Lively, Halle Berry, Evan Rachel Wood, Jada Pinkett-Smith, and more.

Check out the video of the ladies below.