Busta Rhymes is looking huge these days.

Even bigger than last year, when 50 Cent trolled him for the size of his neck.

While many think Busta has achieved his bulky new physique with the help of chemicals, 50 Cent is now attributing it to a trainer named Charles.

👀 @bustarhymes got the best trainer in the world. Charles ain’t no joke🤔

A post shared by 50 Cent (@50cent) on Apr 8, 2019 at 6:39am PDT

"👀 @bustarhymes got the best trainer in the world. Charles ain’t no joke," 50 joked.

50 better watch out, Busta's going to throw a Muscle Milk carton at him.