and Hale. the the e H a r m s , at 11 Need chunky peanut butter OMAHA, Neb. (AP) -- man who plays surrogate "mom" to music stars says $70,000 box office gross could be lost for want of chunky peanut butter. According to City Auditorium Manager Charlie Mancuso, elaborate contract riders detailing certain requirements are signed before scheduled concerts. He said that John Denver, for example, needs a rug and comfy chair to get into mellow mood. Other requirements include peanut butter the rock group Aerosmith, Gatorade for Peter Frampton, and three dozen long-stemmed carnations for the Doobie Brothers. Performers legally can refuse to perform if contract details are omitted. Mancuso defends the contract riders as necessary "to counteract the traveling and the imbalance of and drink on the road."