Heather Locklear & David Spade Together – on TV
08/27/2007 AT 01:00 PM EDT
Locklear has signed on for several episodes of the CBS sitcom, a source tells PEOPLE.
In the months after her split last year from Richie Sambora, Locklear was frequently seen with Spade, sometimes under affectionate circumstances.
But their pals repeatedly denied a romance – saying they were just good friends – and Locklear has since started dating her former Melrose Place costar Jack Wagner.