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Greg digs out some of his favourite tunes and best bits from 2011.
BBC Radio 1, BBC Radio 1 N. Ireland, BBC Radio 1 Scotland, BBC Radio 1 Wales
Greg's wearing his annual Christmas reindeer jumper and bringing you all the festive hits.
James Corden drops in on Greg, plus Father Christmas makes another call!
Michael Buble chats to Greg, plus another North Star Caller with Father Christmas.
It's North Star Caller as Father Christmas makes another call!
It's North Star Caller as Father Christmas makes a call!
Greg has another Star Caller, plus the 10 Minute Takeover.
Greg's here with a sack of great music for your afternoon.
Greg gets to meet his idol - Dragons' Den's Hilary Devey.
Just the right amount of wrong!
Just the right amount of wrong! Rhianna joins Greg to review the latest films.