50 Cent lost 54lbs in only nine weeks to prepare for his role in the upcoming film Things Fall Apart.
The rapper will portray a football player who is undergoing treatment for cancer, reports the Daily Mail.
He dropped the weight by following a liquid diet and running on a treadmill for three hours a day, shrinking from 214 pounds to 160 in the two-month period.
"I was starving," he said.
50 Cent has since completed filming and gone back to his normal diet while touring.
He added: "I've been eating. I'll be back in shape in no time!"