Kim Myung-jun (; March 5, 1994) known professionally as MJ (엠제이), is a South Korean singer, actor, and model managed under the label of Fantagio. He debuted in 2016 as the main vocalist of the South Korean six-member boy group Astro. In August 2020, he debuted as one of the five members of an idol trot group named Super Five through MBC's reality trot show Favorite Entertainment. Life and career 2012–2015: Pre-debut MJ was a contestant in the 2012 JYP Entertainment X HUM Audition and won a one-year scholarship from Seoul Arts College. MJ took part in Fantagio's iTeen, a rookie talent development program managed under the label of Fantagio. He and other members of Astro were known as iTeen Boys. MJ along with the other members of Astro starred in a web drama series named "To be Continued" which featured the members as themselves. 2016–2019: Debut with Astro and solo activities MJ officially debuted as a member of Astro on February 23, 2016. During Astro's 2nd ASTROAD To Seoul "Starlight" concert which was held on December 22–23, 2018, MJ performed his solo trot stage "Cheok Cheok". It was included in the DVD of the concert which was released in June 2019. In February 2019, MJ sang his first OST titled "You're My Everything" for the Korean drama, My Only One. Also in February 2019, MJ along with Jin Ju, Hyomin, Heo Kyung-hwan, Kang Tae-oh travelled to Nha Trang for the Korean travel show "Have To Go to Know". In March 2019, MJ and Jinjin took part in the travel/variety show project of Celuv TV - Go Together, Travel Alone. The show was filmed in Saipan and includes Tony Ahn, Han Seung-yeon, Jin Jin and Kim So-hye. It was later on released in a DVD format. In June 2019, he co-hosted Insane Quiz Show Season 2, also abbreviated as "이세퀴" and "IQS S2", with BtoB's Illhoon and Loona's Chuu. In July 2019, MJ and Yoon San-ha were confirmed to be the MCs of the tvN D's variety talk show Blanket Kick at Night. In August 2019, MJ appeared in King of Masked Singer as Driver Kim. Also in February 2019, MJ along with Jin Ju, Hyomin, Heo Kyung-hwan, Kang Tae-oh travelled to Nha Trang for the Korean travel show "Have To Go to Know". 2020–present: Musical debut, Super Five and solo debut In April 2020, MJ sang another OST for