Many times I get a song stuck in my head but I just don't know what it is. As I was going through the Apps store on the iPhone, I saw this free application that was going to solve the problem for me. I first tried it while I was driving home and the song on the radio played and I was wondering what the name was, so I open up the application and hit "Tag." Once I hit tag, I put the phone close to the radio so it could hear the song, and in about 20 seconds it would pop up the artist and song. I really enjoy it because sometimes I just stay all day thinking, "What's that song" and with Shazam I can just click a button and wait a few seconds. I really like how it is free and easy to use. Now I don't have to wonder any more what was the song that was playing and I liked.