Stars including Katy Perry, Jessica Alba, and Emma Stone flocked to the Hollywood Palladium in California on Sunday to help raise money for a suicide prevention organization.
Perry took to the stage with "Glee" star Darren Criss to perform a duet of her hit "Teenage Dream," while Alba and funnyman Justin Long spoke to the crowd as part of the Trevor Project's annual Trevor Live comedy and music fundraiser.
Actress Jane Lynch presented Kathy Griffin with an award after the comedienne pledged the profits from her upcoming stand-up show to the crisis hotline for gay youngsters.
Queen Latifah also performed, while married couple Taye Diggs and Idina Menzel covered "Ebony and Ivory," and Neil Patrick Harris and James Marsden sang together live – sealing their track with a kiss.
Other stars in attendance included Josh Duhamel, Brittany Snow, Paul Wesley, and Joe Manganiello.
(Photos: Getty Images)