Martin - a member of the CORTIS band is a notable rookie idol. Not only possessing an impressive height compared to the members of the same group, Martin is also a talented, promising leader.
In an interview with W Korea, Martin revealed that he was very influenced by BTSs senior RM.
The male idol shared: "I learned about BTS because my sister introduced me. I have always loved music, but when I watched them, I was really sure about the company I wanted to join and the music genre I wanted to pursue.
Once, the senior RM told him: "When the members are exhausted, the role of a leader is to help them regain their energy." Since then, I have always kept that saying in my heart.
I cant forget something he said in an interview: The position of a team leader is just to stand at the end of the trophy. Success will not be possible without teammates.
vouge Korea also revealed that during the preparation for the debut of CORTIS, RM (BTS) directly visited the studio to listen to the upcoming song of the boy band.
RM gave advice as the group leader: "Imagine you guys rowing a boat together. If a person roams in the wrong direction, the boat will be stuck. But when everyone is united, it will quickly plunge forward. Don't forget that personal success also comes from the collective."
Martin was born in 2008, a child of a mixed Canada - Korea family. He joined Big Hit Music, the management company of BTS and TXT, in 2019, becoming a trainee. In August 2025, Martin officially debuted with the CORTIS group (5 members: Martin, James, Juhoon, Seonghyeon, Keonho), playing the role of group leader.
At the age of 17, Martin participated in music production for many HYBE Group artists such as songs Deja vu, Miracle, Beautiful Stranger by TXT; Magnetic by ILLIT; Pierrot by LE SSERAFIM; Outside by ENHYPEN...
Martin also directly participated in the production of CORTIS' debut album - "Color Outside the Lines". He participated in writing the lyrics for all 6 songs in the album and contributed to the production of "Joyride" and "Lullaby".
In addition, Martin is the most famous member of the CORTIS group because of his impressive appearance. The male idol is 1m9 tall, the tallest in the group.
In the newly released Mid-Autumn Festival photos, the CORTIS lineup caused controversy when leader Martin was much taller than the group.
There have been mixed opinions about Big Hit's company choosing a group lineup that is not uniform in appearance. But up to now, the individual, mischievous and somewhat unique style of this music group has received a lot of support.
In terms of music achievements, the group's debut mini album "Color Outside the Lines" with the title track "What You Want ( co-operation with Teezo Touchdown)" debuted at No. 15 on the US Billboard 200 chart. This is the second highest-charting album of a K-pop artist's debut album.
The songs in the album also appeared on the Billboard Global 200 and Global 200 charts outside the US.
"Color Outside the Lines" sold more than 430,000 copies in its first week - reaching the fourth highest first-week sales for a debut album by a Kpop group.
