Los Angeles: Rihanna has once again reinvented her looks by changing her hair colour - the singer has changed her blonde locks to a darker shade.

A website reports that the 24-year-old posted photos on Twitter, sporting jet black hair in three different poses and the caption said: "Cuz I`m black b***h." When a fan pointed out that her new look was similar to her previous Mohawk style, she replied, "I was missing she, but I aint ready to chop ha."

(Agencies)