Is he JeongKook or SeungYoon from WINNER?

Is he Jeongkook from 'BangTan boys(BTS)' or Kang Seungyoon from WINNER?
The picture titled 'guess who is he' is uploaded on the Korean online community and is getting people's attentions.

Netizens who saw this picture showed their reactions like that
"I thought he is absolutely 00..... I'm not qualified as a fan ! lol"
"this looks like JinHwan from iKON, lol",
"this angle makes him a really different person,lol"

↓Guess who he is? Jeongkook or Seungyoon???
The correct answer is

▲Image Source:Online Community &
MBC FM4U Visible Radion「Dream Radin with Tablo」