Katy Perry: 'Jimmy Kimmel Live' Guest!

Katy Perry greets fans outside the El Capitan Theatre after making an appearance on Jimmy Kimmel Live on Monday (June 25) in Hollywood.

The 27-year-old singer, in Temperley London, chatted with Jimmy about her new film Katy Perry: Part of Me 3D, which hits theaters on July 6.

PHOTOS: Check out the latest pics of Katy Perry

“Watch me wig out on the couch with @jimmykimmel at midnight/11p CT tonight on ABC!,” Katy wrote on her Twitter along with a picture of her backstage.

10+ pictures inside of Katy Perry leaving the El Capitan Theatre…