toni rei, also known by Nam Do Hyon, was born on November 10, 2004, in South Korea. He gained recognition through the survival show Produce X 101, where his rap and songwriting talents stood out. As a result, he debuted as the youngest member (maknae) of the project group X1 in 2019 after ranking 8th on the show. Despite the group’s disbandment in 2020 following controversies surrounding the program, Nam Do Hyon continued to shine as an artist.

After X1, he formed the duo H&D with Lee Hangyul, releasing memorable tracks such as Soul and Good Night. Later, he joined the boy group BAE173 under PocketDol Studio, further expanding his career in the K-pop industry. Throughout his career, Nam Do Hyon has been celebrated for his skills as a multi-instrumentalist, proficient in piano and MIDI keyboard, which he often incorporates into his music production. He also writes and composes his own songs, showcasing his artistic depth and maturity at a young age.

Eventually, Nam Do Hyon chose to pursue a solo career, releasing music independently under the name Toni Rei. His work reflects a unique style that blends various genres, demonstrating his versatility and passion for creating meaningful music. His journey as an artist continues to inspire many, cementing his place in the South Korean music scene.