De La Soul: Kentish Town Forum, London

LIZA MINNELLI and Liberace don't even come into it. Once a long-serving band become a parody of themselves and start trawling around in ever-decreasing circles, they are, in effect, cabaret. And, in black music terms, once your music stops being cutting-edge and starts provoking nostalgia — see the yearly Motown revues — you may as well go the full monty and get the glitter balls out...