What constitutes an oldies song can change with each decade. But think “American Graffiti,” “Happy Days,” and “Grease.” And don’t forget the choreographed boy bands (the original ones before the Backstreet Boys and Boyz II Men). Oldies are traditionally the songs from the 1950s through the late 70s -- rock and roll at its purist. You can find many different music types such as R&B, Rock and Roll, Doo-Wop, Country, and more.