In a collision of K-pop and American R&B, legendary K-pop group MONSTA X meets Grammy-nominated American singer and songwriter Gallant! Witness the incredible first meeting between these two influential artists from different parts of the globe. Crossing languages and cultures, they tell the stories of their humble beginnings, their dreams and inspirations, and their long journey towards success. Through the power of music, they connect to each other, and the world.
| Actor | Role |
|---|---|
 Gallantself (Gallant) | self (Gallant) |
 SHOWNUself (SHOWNU) | self (SHOWNU) |
 WONHOself (WONHO) | self (WONHO) |
 MINHYUKself (MINHYUK) | self (MINHYUK) |
 KIHYUNself (KIHYUN) | self (KIHYUN) |
 HYUNGWONself (HYUNGWON) | self (HYUNGWON) |
 JOOHONEYself (JOOHONEY) | self (JOOHONEY) |
 I.Mself (I.M) | self (I.M) |