Breez is an old friend of Freezbone and appears in the episode "Summer Breeze". He is assumed to be "The Chameleon" by Mostart. His full name is mentioned at the end of the same episode by Freezbone; Bobo Brezinski. Freez tells Mo not to tell Breez that it was him who told the group his full name, suggesting that Breez might be uncomfortable with it.
Breez can play pretty much any instrument but he does know his limits and doesn't seem to boast about it. He even plays multiple instruments in the same song, sort of making him like a one man band!