Bad cover version

Bad Cover Version @ Yahoo! Video

You're about to watch one of the most interesting videos there are. The song is 'Bad Cover Version' and the band is Pulp (2001). The video is clearly modelled on 'Do they know it's Christmas', a notorious studio session of jamming celebrities reaching out to us to give Christmas to Africa.
The difference is that this video here appears to be an endearing, if ironic tribute to Pulp and against all odds it features no stars. The singers - albeit honestly cooing their hearts out - are all fake. It's all rather like some strange pop stars maskenball.
Where does one find so many of these people? See if you can spot Robbie Williams, Liam Gallagher, Kylie Minogue, David Bowie, George Michael, Bono, Sophie Ellis Bextor, Jennifer Lopez, Paul McCartney, Craig David, Tom Jones, Björk, Kurt Cobain, Rod Stewart, Meat Loaf, Cher, Jason Kay, Jarvis Cocker, Mick Jagger, Elton John, Missy Elliott, Bob Geldof...