ITUNES FESTIVAL: Tony Bennett + Imelda May

The veteran jazz-pop crooner, who has sung with everyone from Sinatra to Gaga, heads to north London's Roundhouse to perform at the iTunes Festival, finishing a short run of rare London shows. He may be an octogenarian, but Bennett's pipes are still in cracking shape, and his gigs are whistle-stop tours of jazz standards and showtunes: Bennett rarely spends more than two or three minutes on each song and leaves little time for any schmaltz. Dublin singer Imelda May, who has made serious inroads into the charts with her Jools- and Parky-authorised swing and jump blues, plays a support set. To win free tickets, enter at itunes.com/festival.