A pop singer who was cute when he was 10, but now is no longer cute. He is famous for his hated songs like "Crush On You" and "I Want Candy."
Aaron Carter is the younger brother of that Nick Carter guy.
MMMBop is a song by the band Hanson. The word "MMMBop" is basically all the lyrics the song consists of, yet still most people cannot sing it right.
"MMMBop ba duba dop ba du bop ba duba dop ba dubop ba duba dop ba du" is how the song goes.