Whether if your a skinny guy trying to get buff or a chubby guy trying to get ripped, this video might be worth watching.

It features four men with difference size and shape that are unhappy with the way they look. Two of them are bulging bodybuilders and two are skin and bone.

All four men are on a mission and have come to London to change their body in 12 weeks. They will follow a strict diet and workout program designed to change their bodies in a safe way. But first the experts need to see what their muscles concludes with.

Can they achieve the perfect male physique in just 12 weeks? Will they learn about their body both outside and in, lets find out..

skinny muscular transformation