On August 1, the INFINITE�member shared a hot photo of his back on Instagram. In the caption, he explained, "8 months of dieting! It was hard continuously keeping up but no more fat belly hahahaha�^^ I'll show my face later keke�sorry."

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Fans are especially more impressed by the idol star's bulky figure as he was known to be an extremely skinny member.�

Comments of amazement stated, "Wow oppa...", "Daebak", "That body! But really Sungyeol? Oppa if this is really you... wow", "Hul :0"

I mean, just take a look at his hot bod. Isn't Sungyeol amazing?�

8??? ????! ??? ??? ? ?????? ????? ?? ?? ????^^ ??? ????? ??????? #??#????#?????????#??????#????????

A post shared by ??? (@leeseongyeol_1991) on Aug 1, 2017 at 2:11am PDT