Bruno Mars used to play cards to pay rent

Singer Bruno Mars says before he became an R&B superstar, he used to go to casinos to make money so that he could pay his rent.

Asked if it was true, that he would play poker for food, he said: "For a little while yeah," reported Female First.

The 31-year-old singer also said that it was at the age of four that he realised he wanted to be a pop star.

"Four years old and I was impersonating Elvis Presley in my dad's rock 'n' roll 1950s white Review in Waikiki," Mars, 31, said.