Lim Jun Hyeok (임준혁; Jun Hyeok) is a South Korean singer-songwriter and musician. He was a former member of the bands Be-Blossom and DAY6. In 2017, he participated in KBS2's idol rebooting project The Unit but was eliminated.
Jun Hyeok debuted as a member of DAY6 on September 7, 2015 with the release of their first mini-album The Day.
On February 27, 2016, JYP Entertainment confirmed that Jun Hyeok has officially left the group, following the announcement that Jun Hyeok was dating a fan for almost a month. An official statement by JYPE stated DAY6's fan page, wrote, 'Jun Hyeok who participated in activities as a member of DAY6 has officially withdrawn from the group and due to personal reasons his contract has been canceled'.