Kang Younghyun (강영현), or Young K (영케이) is the bassist and vocalist of the K-rock band DAY6 (deb. 2015). He is known to be the lead lyricist of the band, having written a lot of songs in their discography. Young K is also part of DAY6's first subunit, DAY6 (Even of Day) (also simply known as Even of Day) along with members Wonpil and Dowoon. They debuted on August 31, 2020, with the mini album: 'The Book of Us: Gluon - Nothing Can Tear Us Apart'.