After laying low for a little while to get married and have a baby, Lawrence decided to shake it on the third season of the hit ABC show.
"This dancing has been getting me in really good shape," says Lawrence. "You can't keep the weight on just because you're always moving 3-4 hours a day like this sweating your brains out."
While fans may be surprised to see his moves, many will be even more surprised by his new appearance. Gone are the long locks that made him famous, and what remains is a shaved head and lots of muscles.
"My hair went along with my career ... I never had the guts to go completely clean ... I got rid of all the hair products, brushes, dryers and everything. It takes me five seconds to get ready, it's great. I'm not going to grow it back."
The new season premieres Tuesday, September 12 at 8PM.