Renee Zellweger & Amber Riley Step Out for The Painted Turtle's Starry Evening!

Renee Zellweger gets together with Kathy Griffin and record producer Lou Adler while attending The Painted Turtle Presents A Starry Evening of Music, Comedy & Surprises held at the Davies Symphony Hall on Monday (March 10) in San Francisco, Calif.

The 44-year-old actress was also joined by Annette Bening, Josh Groban, Bonnie Raitt, Danny DeVito, and Glee actress Amber Riley, who hit the stage to perform with the kids from The Painted Turtle camp at the UCSF Medical Center.

“Honored 2b a small part in helping raise money for The Painted Turtle! Those kids brought me so much joy 2nite,” Amber wrote on her Twitter account. “Can’t even explain it!”

15+ pictures inside of Renee Zellweger, Amber Riley, and others at the event…