Liam Gallagher

The former Oasis singer has gone on to have a pretty cool solo career. However, don't even try to talk to him about "Wonderwall." His stage presence while playing on his own was never that exciting, and his songs were never as successful as the few major hits he wrote with his brother. Also, the constant feuding between him and Noel gets pretty old.

Britney Spears

Critics have some harsh words for Britney. Though a plethora of pop fans love and respect her work, others feel that her nasal-pitched, childlike voice and blatant sex appeal served more as an industry plant than a form of artistry. She had huge financial success until her pretty predictable breakdown in 2007.