Rhee Woo Seok (Korean: 이우석, born May 3, 1975) also credited as Rainstone is a music producer, songwriter, and the senior vice president of JYP Entertainment, located in the USA. He became the first Korean songwriter/producer to enter the Billboard HOT100 Chart with the Wonder Girls hit single 'Nobody', which debuted at 76.[1][2][3]
He graduated from Berklee College of Music in 1999 and University of Miami in 2003.