James Corden’s weight was a defining element of his career for many years. In fact, his break out roll was in UK drama Fat Friends.
Another professional James worked with is Jason Layden, who has devised a dance based workout.
Talking to The Sun, trainer Jason said: “I will never forget the first time I met James.
“There were 50 people in the class and he showed up with a big smile on his face in these hip-hop low pants like MC Hammer.
“He came and he was on it, he was in the front row and ready to go.
“He was loving it, with a big smile on his face. He came in like a regular dude, but a dude that knows how to dance.”
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Another British celebrity has slimmed down considerably in recent months, wowing fans.
Adele’s weight loss has left some unable to recognise her.
The Sun previously reported that Adele’s weight loss transformation is down to working with The Body Coach, Joe Wicks, after secretly following the personal trainer’s high-intensity workout videos.
Wicks rose to fame on YouTube with his quick 15 minute HIT workouts and encouraging people to prepare their meals and cook from scratch.