Ruddie Miller (루디밀러), was born as Kim Min Seok (김민석) in South Korea on February 25, 1992, and is an independent rapper based in Seoul.

In 2012, he appeared on a survival audition program K-pop Star in it’s second season, as the leader and member of the hip-hop crew Raccoon Boys (라쿤보이즈).

He previously went by the stage names Youngslow (영슬로우) and Slow (슬로우), and was active under these names from 2016 until 2018, when he changed his name to Ruddie Miller (루디밀러). The name is a combination of his three favorite things—Mac Miller, Ruddie from XXXTENTACION, and Freddie Mercury.