1) Nero's Day at Disneyland is a unicorn in its basement, rolling hard and vomiting up candy rainbows, with a gangbang occurring simultaneously. I really leave it up to you to decide if that's a bad thing or not.
2) The Beatles: Honestly none of the four are/were very talented musicians. Especially Paul. Paul really had a nice singing voice and the plus of being fairly attractive, I think that's why he got in the band.
3) Lily Allen: As far as musical composition goes, her songs are pretty shallow. Also, it is undeniable that she is kind of a drunken slut. Aside from her having a charming voice there's not a whole lot being brought to the table, really.
4) Emilie Autumn: Oh blah blah blah yet another feminist cunt whining about animals and how women are all mistreated and shit, and making angsty shrieky music while she does it. Great.