Randy Jackson

Randy Jackson made a name for himself as a bassist, but he really gained fame as one of the three original judges on Fox’s American Idol in 2002.
Jackson weighed over 300 pounds when the show began, and the following year he underwent gastric bypass surgery. He lost 114 pounds after the operation and has kept it off by watching his diet closely, staying active, hitting the treadmill, and playing tennis.
Good for you, dog!