The Trevor Project Live 2012 Celebrity Pictures

Katy Perry, in Marchesa, joined Amy Poehler for the Trevor Project's annual benefit, Trevor Live, in LA last night. The bash is organised each year to raise money for outreach efforts that help lesbian, gay, bisexual and transgender young people in crisis. Amy had her Parks and Recreation ladies Rashida Jones and Aubrey Plaza by her side. Katy, meanwhile, said hello inside to friends like Jesse Tyler Ferguson and the director Adam Shankman. Anna Kendrick and Zoe Saldana also hit the red carpet.

Glee was well represented inside the bash, with stars Matthew Morrison, Naya Rivera and Chris Colfer turning out. Revenge had plenty of celebs on hand too, including Ashley Madekwe, Christa B. Allen, Connor Paolo and Gabriel Mann. They all turned out to support the cause, and also honour Katy Perry. She received a special accolade at the show, her second of the weekend. On Friday, Katy also attended NYC's Billboard Women in Music lunch to pick up another statue.