Katy Perry looked stunning dressed in flapper flair at the City of Hope ‘Hope Love Music’ event held at The Geffen Contemporary at MOCA on Tuesday (June 12) in Los Angeles, CA.

The 27-year-old singer was there to help honor (along with the Music And Entertainment Industry Group,  Alicia Keys, Ryan Seacrest, Chelsea Handler and Cindy Crawford) Clear Channel CEO & MTV- founder Bob Pittman.

Katy also just released a teaser trailer for her upcoming “Wide Awake” video — the full video will debut on MTV on June 19.