hi my name is donny and i was wondering in each of the opening sequences at arnolds where ritchie potsie and ralph are seen did potsie really sing goodbye grey sky hello blue and was the band really playing the guitars in the sequences and also who was playing th drums in the sequences chachi?
cause we never see chachi playing in the sequence until the new arnold?
your happy days penpal donny ayyyyy

The theme song from HAPPY DAYS DEFINITELY wasn't sung by any of the cast, and, it was made into a hit song on radio in 1976, but, I don't remember the group who sang it. Do you notice, that in the FINAL SEASON(1983-84), the song is done by a different group, and the clips in the opening sequence center more around the Cunningham house, and Fonzie even doing his "AAAAYY" trademark in the house, with Howard and Marion, perhaps the rest of the cast?