Franz Ferdinand - This Boy. I have a thing for simple repetitiion and these boys satisfy that with this song. Nice and catchy, it's probably a single of theirs. I wouldn't know, I don't have a radio.
Fannypack - Keep It Up. I love cheerleading chants, drumline, and step so mixing that together with a creative use of basketball sounds and whistle always makes me happy. Happy hip hop. Excellent.
Flogging Molly - Devil's Dance Floor. Because Celtic Rock is always appropriate.