Rihanna debuts yet another wild new style at the American Music Awards

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Perhaps in a bid to steal Madonna's crown as the queen of reinvention, Rihanna has debuted yet another new style.

The singer arrived at the American Music Awards last night sporting an Eighties' style perm in her flame-coloured hair.

Rihanna maintained her provocative fashion sense in a revealing backless Elie Saab gown, before changing into another risqué onstage outfit at Los Angeles' Nokia Theatre.