Was this the Carling "Homecoming" type event?
I was at this one, see more in Paul's gig history for 2003. Part of the list of all the gigs I was at from 1987 to 2019. It's an obvious progression from my Best gigs of all time blog post. Yeah I know it's a bit geeky, let's let that go though, I'm enjoying remembering these things.
Was right by Tottenham Court Road tube, now demolished in the name of "cross rail"