Yoon Kye-Sang is a South Korean singer and actor under Just Entertainment. He made his debut on January 13, 1999, in the boy group g.o.d under SidusHQ.
After reuniting with g.o.d in 2014, Kyesang wrote the lyrics for the wing "Wind" which was released after the conclusion of their nationwide tour as a gesture of gratitude to fans.
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In December 2000, Kyesang, then a member of g.o.d, received a poisoned drink from a supposed fan. His mother drank the drink and had to have her stomach pumped.