I can't pick a worst song but I will admit if I had an unordered list it would consist of Friday by Rebbecca Black, any of Justin Beibers songs, most of Miley Cyrus' songa and a few other Disney stars, I just find that the music is annoying and the lyrics are almost a joke, not to mention whiny voices and the fact that the songs are usually about things that I doubt they have had any real experience with.