GCB, Bruce Boxeitner, Annie Potts and Sheryl Crow GCB, Bruce Boxeitner, Annie Potts and Sheryl Crow

Sheryl Crow is going to stir things up on GCB April 1, and we have your first look at this April Fools Day treat.

"It's a very special episode," says creator Robert Harling. "This is the episode that starts a rivalry between Carlene and Cricket. They're both such incredible musical talents who are getting their chance to sing at the church fundraiser. They consider themselves big stars, but Heather is dating a zillionaire who manages to score Sheryl Crow as the entertainment and trump the other women."

Harling says the song Sheryl sings, "The Gospel According to Me," fits perfectly with the tone of his show. "It's perfect synchronicity," he says. "Sheryl saw the pilot and totally responded to what we were doing. It was meant to be!"

The episode also marks a turning point in Gigi's relationship with old flame Burl (Bruce Boxleitner, who debuts in this Sunday's episode). Also keep an eye out for former Knots Landing diva Donna Mills as Burl's wife, Bitsy, who comes to a costume party dressed as Barbara Bush. Then in the April 1 episode, Gigi will interrupt Sheryl's concert to make an announcement about her relationship with Burl.

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