United Kingdom, June 18 -- Joel McHale has undergone four $10,0000 hair transplants and admits he is "fully bald".

The 53-year-old actor and comedian - who is best known for hosting The Soup and his role as Jeffrey "Jeff" Winger on the NBC sitcom Community - says the treatments he has had are "a miracle" because he lost all his hair ages ago.

Appearing on the We Might Be Drunk podcast, he confirmed: "Yeah, I'm fully bald. [I've had] four transplants.

"I did it way back when it was a strip. Painful. Don't do a strip. Do plucking. Now they pluck it from the whole back section, and it's a miracle.

"You're still going bald, so that hair is still falling out, but the hair that you put there is growing, but you'll still thin, because the ha...