What is the birth name of the YouTube celebrity who played himself in the #REHASH episode of South Park?
PewDiePie Felix Arvid Ulf Kjellberg ( ; ] ; born 24 October 1989), better known by his online pseudonym PewDiePie ( ), is a Swedish web-based comedian and video producer. He is known for his Let's Play commentaries and vlogs on YouTube.
MC Gree Gim Dong-hyeon (; born November 10, 1998), also known by his stage name MC Gree (Korean: MC 그리 ), is a South Korean rapper, actor and television personality signed to Brand New Music. He is the son of comedian Gim Gu-ra.