There was a fab thread a while back about the best nineties music which has rather inspired my spotify.
Moving on a decade, what's your favourite tune(s) from the first decade of this century?
I loved Take That reforming and absolutely love the 'feel good' vibe of Shine. 
Also liked the tune of Smile by Lily Allen and it always makes me grin that the lyrics don't really reflect the tune.
The Kooks - She Moves in Her Own Way and Naive.