Chumlee Lifestyles of the Thin and Famous

4/15/2014 6:40 AM PDT
Chumlee from "Pawn Stars" was quite the popular guy this weekend ... hanging with a bevy of beauties at Rehab pool at the Hard Rock Hotel in Las Vegas.

He's lost about 75 lbs. in the last year, and stars on a super popular reality show, but we're sure the girls were totally into him for his personality.