Here is the thing.  I love the sounds at the beginning of the song and the instruments and all that, I don't love the lyrics that much.  The lyrics are catchy but kind of juvenile, makes me feel dumb when I listen to it.  Whatever, its a groovy song, you have probably heard it, and its worth buying.  I bought it after hearing it in the Chasing Mavericks movie that recently came out, I was like oh yeah and bought it.