The 46-year-old, who made a cameo in "The Hangover" as himself, wants to branch out to musicals and try a new career in order to entertain his fans, reported Sun online.
"I want to dance and sing. I want to do some dancing and singing musicals. I don't have the desire to be that guy any more. I was always the bad guy that wanted to be a good guy, but I didn't know how to be a good guy," Tyson said.
"I was always so concentrating on being bad. I'm just so happy to become this guy, to be a responsible adult. For a guy like me this is very courageous," he added.
The former sportsman blew millions of dollars on alcohol and drugs over the years, but says boxing for him wasn't about the money.
"I didn't care about my business. I only cared about my glory. You can't buy that... I was the best fighter in the world. Nobody could beat me with money in my prime, you had to be a better fighter and there wasn't any," he said.