I have someone in mind, but I won't say it because looks have ~NOTHING~ to do with talent.
It's not Taylor though, who is incredibly pretty <3 (& it's not Ke$ha either. She's really pretty when she tries to be)
Britney in my opinion used to be so beautiful but the drugs and alcohol ruined her face and body. She looks close to 45 now. Gaga is also pretty unattractive imo.