Zachary Quinto Rocks Out At U2 Concert

Zachary Quinto and a mystery male hit up U2 and the Black Eyed Peas concert at The Rose Bowl on Sunday night (October 25) in Pasadena, Calif.

Slash was seen singing 'Sweet Child Of Mine' with BEP in front of an audience which also included Jeremy Piven, Alyssa Milano. You can stream the concert on YouTube!

Yesterday, the 32-year-old Heroes actor stood up for gay rights and participated in a reading of 'The Laramie Project: 10 Years Later' at Hollywood United Methodist Church. The event benefited the Matthew Shepard Foundation and was also attended by actors Jim Parsons, James Cromwell, Helen Shaver, Pauley Perrette, Christian Clemenson, Michael Weatherly, Johnny Galecki, Barrett Foa, Lisa Edelstein and Julie Benz.