Miraclass (pronounced /miɾakɯɾas/ using IPA, Mirakeullaseu using Revised Romanization, Korean: 미라클라스) is a South Korean crossover quartet formed in 2017 on the JTBC audition program Phantom Singer 2. The group consists of baritone Julian Jootaek Kim, tenor Phillip Jeong, pop tenor Kang-hyun Park, and bass Tain Han [ko]. They were the runner-up team on Phantom Singer 2,[1] and subsequently participated in Phantom Singer concerts.[2] They released their album Romantica in 2018[3] and held their own concerts.[4][5] Additionally, the members pursued individual projects: Julian Jootaek Kim performed operas in Italy,[6][7][8][9] Kang-hyun Park appeared in musicals like Kinky Boots,[10]The Man Who Laughs,[11] and Mozart!,[12] and Jeong and Han formed the jazz/easy listening duo "Feel in."[13][14] During the COVID-19 pandemic, they appeared in Phantom Singer All Stars.[15][16] Individually, the members have continued careers: Julian Jootaek Kim played the Phantom in The Phantom of the Opera and Pierre Bezukhov in Natasha, Pierre & The Great Comet of 1812;[17] Phillip Jeong released classical albums;[18] Kang-hyun Park performed protagonist roles in musicals like Hadestown,[19]Memphis,[20] and Dear Evan Hansen,[21] and appeared in a TV drama;[22] Tain Han has been producing adult-oriented and animation rock music in the indie scene[23][24] and releasing albums.[25][26] The group conducted a national tour in 2022[27] and engages with fans through their YouTube channel, launched in 2021.[28]