The Halo: Reach launch party guestlist has been revealed.
Among the celebrities are Rio Ferdinand, Jason Bradbury, Jameela Jamil, Ben Cohen and Mr Hudson - a group better known as the Elite Spartan Squad. But there are many more well-known faces besides: pop stars Pixie Lott and Amelle Berrabah from Sugababes, for example.
Boxer Joe Calzaghe is going, as is tennis player Andy Murray and smiley hurdles champion Colin Jackson. Other sporty types include retired footballer Lee Sharpe, Rugby player Dominic Waldouck, sprinter Harry Aikines-Aryeetey and 400m hurdler Perry Shakes-Drayton.
Most of Hollyoaks seems to be on the list: Matt Littler (Max), Darren Jeffries (O.B.), Chris Grierson, Louis Tamone, Ricky Whittle, Jamie Lomas and Warren Brown. And they'll be joined by fellow actors Lucien Laviscount (Coronation Street) and Prey Kailas (East Enders).
TV presenters Charlie Webster (Channel Bee), Dr Christian Jessen (Supersize vs. Superskinny) and Gizzi Erksine (Cook Yourself Thin) are all down to attend.
MOBO-nominated rapper Kano might pop in, as might boy band Boy Banned and indie rockers One Night Only.
Big Brother 11's JJ and Big Brother 5's Brian Belo are somewhere around the bottom of the list, joined by "Page 3 girls" and male models Luke Worrall (boyfriend of Kelly Osbourne) and Alex Watson (brother of Harry Potter star Emma).
The Halo: Reach launch event takes place tonight at London's Victoria House in Bloomsbury.
Halo: Reach will be released next Tuesday, 14th September.