The store is having a song-writing contest and the prize is $1000. So Jeff, Jodie, Sam and Muffy decide to each write their own song to enter the contest. But after Sam's loud-speaker goes out of control, The whole store can hear the ""Yo Hee Ho"" playing. Muffy thinks that Sam did that on purpose to distract the others. So She distracts him by playing a tape of the ""Rockin' Rodents"" using a huge speaker, and this escalates. But problems get worse when Muffy tries one of Waldo's magic spells that make everyone exchange voices, and in the end they decide to work together in writing a song.