By chance, two comics with a penchant for rock‘n’roll have been strutting their stuff at opposite ends of the capital in the same week. First, Bolton funnyman Peter Kay was giving it his all on stage at the O2 on the Greenwich peninsula, and now Bill Bailey begins a two-month-long residency at the Wyndham’s Theatre in the West End. Music buffs both - but in Bailey’s case there are no air guitars as he’s an accomplished musician, and the stage is filled with stringed instruments and keyboards.