Usher
Rihanna
Chris Brown
U2
Sting/The Police
50 Cent (well, not anymore really...)
Cher
Celine Dion
I like a lot of their songs, hell I love a lot of their songs, but I just don't see why everyone creams their pants over them all. Especially with U2, people act like Bono is some sort of saint.
Oh and Madonna is pretty overrated too. I'm not going to say Jonas Brothers or Miley because they are only overrated with kids 15 and under sooo yeah. I don't know many people above those ages who actually go around saying they are like the best band or artist ever...