Spice Girls – 2 Become 1

The Spice Girls being Christmas #1 in 1996 was a given, but there’s a reason why ‘2 Become 1’ is their biggest-selling, best-known ballad.

Britney Spears – Me Against The Music (Feat. Madonna)

‘Me Against The Music’ was a well-timed collaboration between Britney Spears and Madonna, emerging from the fallout of their VMAs kiss.