Jessie J
Jessie JArtist: Miley Cyrus Song: "Party In The USA" (2008) This patriotic Miley Cyrus jam has been a staple on party playlists for over five years, and we're still not sick of it. It might surprise some to find out that then-unknown British songwriter Jessie J was the woman behind the pop hit. Nowadays, Jessie J is giving Hannah Montana a run for her money on the charts with hits like "Price Tag" and "Domino." [Photo via]