Rihanna is a hair chameleon, but it doesn't always work out for the better. Take for instance the curly red afro she rocked in 2011, which only made her look like 'The Simpsons' villain Sideshow Bob.

Rihanna (born Robyn Rihanna Fenty) sings, tries to act, and designs questionable clothes, but she's best known for a public persona that involves an on-and-off relationship with former abuser Chris Brown, smoking a lot of blunts, and frequently posing half-naked on Twitter and Instagram.

Sideshow Bob is a recurring 'Simpsons' character whose goal in life is to kill Bart Simpson for sending him to prison. Since he's voiced by Frasier Crane himself, Kelsey Grammer, the creators took great pains to draw parallels between the characters -- Bob's brother Cecil is voiced by David Hyde Pierce (who played Dr. Niles Crane on 'Frasier') and Bob's father is voiced by John Mahoney (Martin Crane on 'Frasier'). He's also a bit, well, pedantic.

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