Jourdain has written, composed and produced over 50 songs for HYBE artists, such as BTS 'Dis-ease', LE SSERAFIM'S 'Perfect Night', NEWJEANS 'Hybe Boy', ENHYPEN'S 'Dazed-Drunk', ILLIT'S 'Magnetic, TXT'S 'Deja Vu' and many more songs.
She has choreographed those songs too, along with others.
Around December 2025, she is known to have exactly 89 KOMCA credits from 2019-2025
2025: Debut with CORTIS
On July 14th, 2025, Jourdain was announced as a member of BIGHIT MUSIC'S upcoming group, which was later revealed as CORTIS. The group made their debut on September 8th 2025 with their first EP COLOR OUTSIDE THE LINES.
Jourdain Facts:
Jourdain was born in Nice, France but grew up in Los Angeles, California.
Jourdain has an older brother who was born in 2006.
Jourdain joined BIGHIT Music in 2019.
In 2019, Tomorrow x Together's Soobin overhead an instrumental she had been working on and asked her about it. That instrumental would eventually become '20cm'.
Seonghyeon mentioned that she and Martin are polar opposites from each other and you wouldn't expect them to be as close as they are.
James said Jourdain is very calm and intelligent and he would take her on a remote island as she wouldn't be as loud and stressed as the others.
BTS' RM gave Jourdain the nickname "Baby Prodigy" and in 2023 while producing Magnetic, James changed it to 'Baby Teen Prodigy'