Backstreet Boys star Nick Carter is confident he has learned from his past mistakes - and is keen to rid himself of his bad boy image. The singer hit the headlines after being charged with two counts of DUI in California in 2005 and was ordered to complete a rehabilitation program. But the 27-year-old insists he is a changed man after his brushes with the law. He says, "I've never tried to be a bad boy - it's just something that happened. I got caught in situations like everyone does in their life. "Either you learn from these things - or you're an idiot. Bad s**t happens. But if you've been watching me closely, I'm not being bad anymore."