Greg comes live from under the Radio 1 Christmas tree.
BBC Radio 1, BBC Radio 1 N. Ireland, BBC Radio 1 Scotland, BBC Radio 1 Wales
It's Christmas Eve, management have left the building - anything could happen!
David Garrido joins Greg to take a look at the sporting week.
Alex Sim-Wise talks gadgets and games, plus Greg brings you another Ten Minute Takeover.
Greg looks at the album chart and brings you another best bit from yesterday's radio.
Nick Grimshaw sits in for Greg James with another Feet Up Friday.
Mystic Greg tries to predict the week's Top 40.
Michael Buble, one of Canada's biggest exports in 2009, drops in on Radio 1.
Alesha Dixon drops in at the end of the show to take some of your calls.
Greg is your host for another Feet Up Friday.
Shakira is Greg's special guest on today's show.