Singer/Songwriter/Humorist Jonathan Coulton did a cover of Sir Mix-a-Lot's "Baby Got Back" in 2005. Then Glee decided to cover the song as well. Except Glee's sounds STRANGELY similar to Jonathan Coulton's. How similar? When you play them both simultaneously, YOU CAN'T EVEN TELL IT'S TWO DIFFERENT SONGS. This is why I never trust a capella singers.