Here Come The Girls by Ernie K. Doe - Advertisers really know that the way to getting an advert remembered is to put a good piece of music in there, I've been addicted to the recent Boots ad!
Music Is My Hot, Hot Sex by CSS - Another piece of music from an ad, the combination of onscreen iPod-touch-porn and this piece of music is a winner!
Just one more ad theme, honest! There was a recent ad that I found on YouTube that Sky made, shamelessly plugging their alleged eco-friendliness. Here's Joy to the World by Three Dog Night. Another nice catchy tune!
Going off the ad theme but staying on TV, music from Scrubs is always good and the new Season 7 is no exception, here's Friends And Family by Trik Turner from the episode "My Inconvenient Truth", catchy and works well with the theme of the episode.