Warren G embarked on a new fitness regime after his friend Dr. Dre urged him to start working out for the sake of his health.
The rapper appeared on weight loss reality TV show Celebrity Fit Club in 2007 and lost 31 pounds (14 kilograms), but admits he gave up his healthy habits soon afterwards.
However, he was inspired to get back to the gym after a candid conversation with his friend and fellow hip-hop star Dr. Dre.
Warren G tells TMZ.com, "A lot of people in my family have high blood pressure... Dre told me I better start hitting the gym... so I took his advice... Seeing Dre looking all cut up and in shape made me want to get myself together and look right, too."