The thing is...I know Mika very well (his work, that is) and to me it sounded playback in some parts, not just the backing vocals.
It can be just an impression, but that's what it looked like... (and I'm not the only one thinking the same, so I'm probably not nuts)
Anyway, I loved seeing him on stage, he looked happy and I'm still very proud of him!
About the dance...it seemed an NRJ thing, not exactly 100% Mika (especially with the dancers there)
OMG the lady who sang with Seal was SO out of tune at some parts!!! But he was great, I agree!
Oooh...maybe Mylene Farmer, yes! I remember noticing it, but there were so many performances that I couldn't remember who it was!