United Kingdom, Oct. 9 -- 50 Cent thinks self-confidence has fuelled his success.

The 51-year-old rapper was a drug dealer before achieving huge success in the music business, and 50 now claims that his self-confidence is the engine of his fame and fortune.

The New York-born star told Interview magazine: "I think influence is power.

"Some people love me and some people hate me, but it's just me being me. Look, I can still be overconfident, but that's because I had to be confident when I had no supporters."

50 notices how his standing changed as he worked his way up the music business.

He said: "When you're coming up, something organic happens that's so powerful. You look at it and go, 'Whoa, we never get a second chance at a first im...