Here's mine in no particular order:-
- Bjork - She's had many a tantrum and hit a reporter.
- The Oasis Boys - They even look like Oscar the Grouch from Sesame Street
- Robbie Williams - I read his Biography and he often had grouchy episodes
- Alanis Morrissette - her songs always sound grouchy to me
- Eskimo Joe - haven't seen the lead singer crack a smile yet.