Sandra Bernhard, Sheryl Crow Sandra Bernhard, Sheryl Crow

As if a weekly dose of Kristin Chenoweth and Annie Potts weren't enough, ABC's saucy new one hour comedy GCB — taking over Pan Am's post Desperate Housewives timeslot beginning March 4 — has lined up two guest appearances guaranteed to get tongues wagging at the church social.

Singer songwriter Sheryl Crow, who appeared in a 2010 Cougar Town arc, will guest star as herself in the series' fifth episode. "Sheryl is great," reveals GCB creator Robert Harling. "She is the guest star at the church fundraiser. It was fantastic working with her. She's a great actress."

And wild lady Sandra Bernhard, known for roles on Roseanne and The L Word, will pop up in a top secret role. "I'd rather keep what part she's playing under wraps," teases Harling. "It's a big surprise."

This show cannot come soon enough! Bring on the B's!

Subscribe to TV Guide Magazine now!