Rhythm and drums will provide the main musical backbeat to a performance which may be staged in a boxing ring.

BBC: South East Wales - Boxing clever for writing project

It's not an ironic comment on rock hooliganism, or some sort of elliptical Waitsian postdoctoral thesis on the music's history, but a handclapped backbeat twitching like it did in Memphis.

NPR: Tom Waits' 130 Seconds of Rock Bliss