R&B sensation Rihanna knows how to look after herself - she once smacked her brother in the face with a glass bottle. The Umbrella hitmaker, who was schooled at Barbados' famous Cadet Corps, admits she was a terrible sister to her two younger brothers when she was growing up.

She tells Complex magazine, "We talk all the time now, but we used to fight - and when I say fight, I don't mean arguments; I mean physically fight. I hit the older one (brother) in the face with a glass bottle... My mom was pretty upset."

-Rihanna Pictures

(This news article provided by World Entertainment News Network)