Music To Sit In Traffic To

What with buying the new car (which is proving more difficult than expected), I'll be needing to download from Kazaa legally purchase some upbeat summer music.

I'm famous for my lack of shame when it comes to music. I freely admit to owning a copy of Hanson's Mmmmbop. The first CD I ever bought was The Bee Gees 'For Whom The Bell Tolls'. Once, while driving through the suburbs of Melbourne, we came across a group of skater kids at a set of traffic lights. Trying to look cool, we turned up the volume on the CD player and pressed play, to be met with a deafening rendition of Shania Twain's 'Man, I Feel Like A Woman'.

Suggestions, please.