Aqua

If you look up "earworm" in the dictionary, chances are you'll see a picture of this quirky Danish group responsible for the dance-pop hit "Barbie Girl." Despite its bubblegum nuances, Aquarium is actually a well-crafted tomb of sugary Euro-disco anthems designed to get young groovers onto the dance floor. Sure it's disposable pop, but songs such as "Lollipop," "Barbie Girl" and "Happy Boys and Girls" sure sound great on their way into the bin.