Barne has a tee-RIFF-ic surprise for BJ and Baby Bop! Their cousin Riff is moving to town! Riff surprises everyone with his awesome musical abilities and fun personality! | Barney suggests that BJ and Baby Bop put on a special show so Riff can see how much fun they have at the park. Riff is a little shy. Barney encourages Riff to participate, and Riff does what he knows best – he makes music!