I know you don't want to hear this, but if you (and the rest of the band) are good enough, this is easy.
Last night I did yet another gig with my usual drummer and bassist (I play guitar and sing in this band) and a guest guitar player. Not only did I do a whole bunch of songs they had never even heard before, I did a couple of the ones they DID know at slightly different tempos to suit the evening's groove. YES there were a few bum notes, but since we get a set fee AND a whip round at this gig, I am pleased to say that my singerly petulance got us the best payday we have made so far at this gig. Happiness is a full bucket.
I suppose I ought to add we don't just do a bunch of 12 bar blues. Beginning to realise a lot of you guys really do treat being in a band like an evening down the pub with your mates. *sigh*