Last night in New York's Central Park, indie rock royalty kicked off the SummerStage season at the Sound Mind Live festival, raising awareness and support for mental health research and programs.

Performers included Outkast's Big Boi, Cold War Kids, American Authors, KAMAUU, Wrabel and Allison Russell, with ticket sales supporting the New York chapter of the National Alliance on Mental Illness (NAMI). Guest speakers included Talinda Bennington (Chester Bennington of Linkin Park's widow), New York State Office of Mental Health Commissioner Ann M. Sullivan, NAMI-NYC Executive Director Matt Kudish and Sound Mind Live Executive Director Chris Bullard.

To preview the event, Cold War Kids' Nathan Willett spoke with CNN about his commitment to raising awareness for mental health support and his own struggles here. Watch pre-show interviews with actress and Movement Genius founder Alyson Stoner here.