In 1980's what was the name of the childrens pizza place featuring a singing ape?

You're thinking of "Showbiz Pizza". It had a large singing anamatronic ape on the keyboard as the stage show, as well as a cheerleading dog and other instrument playing animals. This franchise was bought out by "Chuck-E-Cheese" and the stage show was converted into other animals with Chuck-E as one of them.