I only managed Guns and Roses
I am sure that was at one of the charity concerts where lots of acts performed. Did they do a solo concert there?
( Enigmatic ™                 Voice No More                  ©, Sun 9 Jan 2005, 1:14, archived)

They did.
NIN supported I think.
( supermoore: HUNG, Sun 9 Jan 2005, 1:55, archived)

GnR
and Faith no More too,

I seem to remember Mr Reznor spent a lot
of the gig crouched by the drum riser.
(driverchris, Sun 9 Jan 2005, 8:55, archived)