Following the release of the MV teaser and tracklist of his comeback album last week, singer Eru successfully re-entered the K-Pop industry after serving in the military, as he released his comeback MV for his title track, White Tears. On today's episode of Mnet's M! Countdown, Eru finally performed his first comeback stage as he performed White Tears! It's been a really long time since we've seen him performing on stage, and with his powerful vocal, the performance of his ballad track made us remember what made him popular in the first place. Without further ado, check out his comeback performance below!