there used to be a gentleman that did Sonny Boy at the singarounds at Redcar Festival and I've got to admit i 'pinched' it from him but havn't performed it for a while. the intro goes something like the ventriloquist has forgotten him/her dummy tonite so please use your imagination that the 'high voice' is the dummy and the 'low voice if the performer plus you have to stand and sit according to who you are - jiggered my knee up it did all this jumping about!!