Chun Myung-hoon (born April 6, 1978) is a South Korean singer, rapper, actor and television presenter. He was a member of boy band NRG. He released his single, "Welcome To The Jungle" on October 19, 2012. He is well known for a cast member on several TV shows include "Girl Spirit".

Can we draw the following conclusion?
Chun Myung-hoon chanced upon the career in music in his early twenties
It's impossible to say