In my opinion, in this song passages, like we have already heard in Avril Lavigne, Lady Gaga, Kylie Minogue, but also with the Black Eyed Peas, mixed. One part reminds one of the, another part to another artist.
Despite well-known passages, still a good song, but which unfortunately is very catchy, from which you can quickly "listening" to. Probably my review would look even much worse in a week.