Siyoon

Name: Siyoon
Native name: 김재섭
Also Known as: Si Yoon, AJ, 시윤, Kim Si Yoon, 김시윤
Nationality: South Korean
Gender: Male
Born: June 4, 1991
Age: 32

Kim Jae Seop, better known by his former stage name AJ, was the vocalist, dancer and composer of the boy group U-KISS. He was also member of the boy group Paran. He appeared in Grey and Verbal Jint's video for the song ''Pretty Brown''. He wrote many U-KISS' songs like: Words that hurt me (together with Dong Ho), Believe, I love you, Love of a Friend, Top That, Obsession and Tell me. He also wrote the rap part for U-KISS' song ''0330''.
He used to live in the United States, New York and went to Columbia University of United States in 2011.
Jae Seop joined Rooftop Company and now is solo singer under the stage name Siyoon. Edit Biography

Year	Title	#	Role	Rating
2019	Kazua Library Korean Drama, 2019, 10 eps Sun Nam (Main Role)	10	Sun Nam Main Role	0.0
2019	Snow Blossom Korean Drama, 2019, 6 eps Lee Hyo Sub (Main Role)	6	Lee Hyo Sub Main Role	5.9
2018	Autumn Blossom Korean Drama, 2018, 10 eps Lee Hyo Seop (Main Role)	10	Lee Hyo Seop Main Role	6.8
2018	Goodbye to Goodbye Korean Drama, 2018, 40 eps (Unknown)	40	Unknown	7.9

Year	Title	#	Role	Rating
2020	Bad and Bad Korean Special, 2020, 1 eps Kim Si Yoon (Main Role)	1	Kim Si Yoon Main Role	7.9

Year	Title	#	Role	Rating
2020	Killing Voice Korean TV Show, 2020, 120 eps (Ep. 90) (Guest)	120	(Ep. 90) Guest	8.9
2018	Problematic Men Season 2 Korean TV Show, 2018, 55 eps (Ep. 185) (Guest)	55	(Ep. 185) Guest	8.3
2018	Two Yoo Project Sugar Man Season 2 Korean TV Show, 2018, 19 eps (Ep. 5) (Guest)	19	(Ep. 5) Guest	7.6
2017	The Unit Korean TV Show, 2017, 28 eps [Auditions] (Guest)	28	[Auditions] Guest	8.0
2014	Go! U-KISS Korean TV Show, 2014, 1 eps (Main Host)	1	Main Host	8.1
2013	After School Club Korean TV Show, 2013, 675 eps (Ep. 3, 31) (Guest)	675	(Ep. 3, 31) Guest	8.1
2013	U-KISS Me? Korean TV Show, 2013, 24 eps (Regular Member)	24	Regular Member	7.9
2012	Beatles Code Season 2 Korean TV Show, 2012, 87 eps (Ep. 13) (Guest)	87	(Ep. 13) Guest	8.2
2012	2012 Idol Star Athletics – Swimming Championships Korean TV Show, 2012, 2 eps (Regular Member)	2	Regular Member	7.7
2011	Lee Soo Geun and Kim Byung Man's High Society Korean TV Show, 2011, 79 eps (Ep. 51) (Guest)	79	(Ep. 51) Guest	7.8
2011	Weekly Idol Korean TV Show, 2011, 700 eps (Ep. 10) (Guest)	700	(Ep. 10) Guest	8.2
2011	Immortal Songs: Singing the Legend Korean TV Show, 2011, 690 eps (Ep. 372-373) (Guest)	690	(Ep. 372-373) Guest	8.3
2010	Beatles Code Season 1 Korean TV Show, 2010, 71 eps (Ep. 58) (Guest)	71	(Ep. 58) Guest	8.0