So you're watching TV and a commercial comes on with an incredible song as its musical background. Or you're heavy into an episode of the Vampire Diaries, and they use a song in a scene that you can't get out of your mind. But what song was it?

For the answers, check out What Is That Song.net. From songs you hear on the radio to those used on TV shows and commercials, this incredible website has a listing of every song used in media.

Full disclosure: Skip Isley, the guy that created this website, is a former co-worker of mine from my days in Ocean City, Maryland in the early '80s. Awesome job, Skip! Glad to see we are both gainfully employed doing what we like to do!