Anything worth a bit of nostalgia, I think I'll go with:
The Killers - When you were young (https://www.youtube.com/watch?v=ff0oWESdmH0) and
t.A.T.u - ALL THE THINGS SHE SAIDDDD (https://www.youtube.com/watch?v=8mGBaXPlri8)
RUNNIN' THROUGH MA HEAD RUNNIN' THROUGH MA HEAD