The chart-topping singer and songwriter graced the red carpet at the Grammys in Los Angeles where he showed off his slimmed-down figure in a black tailored suit.
Speaking to ET, 23-year-old Sam opened up about the struggles that comes with weight loss.
He told the US publication: "It's very very difficult. I love food so much so it's a constant battle. It's always going to be a battle but I'm trying my best."
'Stay With Me' hitmaker Sam also talked about his new physique to CBS, adding: "I've just not eaten like a pig anymore – that's what I'm doing, basically."
The four-time Grammy winner was at the prestigious music ceremony to present the Best New Artist award. It's a category particularly familiar with Sam as he won the same award last year.
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