At his highest weight, Pawn Stars's Corey Harrison tipped the scale at 402 lbs. But when his doctor put him on preventative diabetes medication back in 2010, the reality star says it was his wake-up call. Click here to read how he did it !! http://www.people.com/article/pawn-stars-corey-harrison-amazing-weight-loss

Look how much Chumley has lost as well !!