Zoe Ball comes in from the dark of her Saturday morning show and sits in for the self-proclaimed Heir to the Throne of Scotland, Mr Ken Bruce. The usual heady mix of music and first-class humour will still be present. Sorry about that. National treasure, and Girl Aloud, Cheryl Cole is Album Of The Week plus the finest pop music quiz on the radio, PopMaster, will dazzle another two contestants. William Orbit will also be telling Zoe his first two choices on Tracks Of My Years. As if you didn't know, William is a multi-Grammy Award-winning producer and multi-instrumentalist who produced Madonna's 1997 album 'Ray of Light', which sold 16 million copies worldwide. Not bad, eh?