Katy Perry and Alicia Keys Make Beautiful Music at City of Hope Gala

Katy Perry looked like a vintage Teenage Dream as she attended City of Hope’s gala in Los Angeles last night dressed as a 1920’s-era flapper.

Her burnt rose satin and lace dress was girlish, though the lady later became a vamp as she performed onstage at the Geffen Contemporary at MOCA in a sexy black dress.

Alicia Keys also took the stage to warble some of her greatest hits to fete Bob Pittman, who was honored with the Spirit of Life Award for his charitable contributions over the years.

Chelsea Handler and Ryan Seacrest were also at MOCA to pay their respects to the Clear Channel CEO.

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