Monday night's Grammys [1] were filled with standout red carpet moments, but one of the most notable by far was when Sam Smith stepped onto the scene. The sultry singer looked incredibly slim in a navy suit as he posed for photos, proving once again that we still can't get over how many pounds he's shed since beginning his weight-loss journey nearly a year ago. Last March, Sam committed to a healthier lifestyle [2] and has been sharing his progress on Instagram ever since. Keep reading to see more of his exciting night, then check out his hottest Instagram snaps [3].