Blondie?
Scratch that - just remembered who the man in banana boots was...
The answer is The Humblebums.
The links being Billy Connolly (used to wear Banana Boots on stage) and Gerry Rafferty (of Stealers Wheel, who did Stuck In The Middle, as used in Reservoir Dogs). Both were members of The Humblebums.
The ear-slicer was Mr Blonde, hence my first guess.
d.