110118 Young Street Infinite Sunggyu - Insomnia
Sunggyu (Infinite) - Dream of a Doll (Eng Sub)
[RADIO] 110118 성규 - Insomnia (Youngstreet)
110118 Young Street Infinite - Hysterie
110118 Young Street Infinite - BTD (Before The Dawn)
110118 Seonggyu - Insomnia @ Youngstreet
[RADIO] 110118 인피니트 (Infinite) - BTD (Youngstreet)
130413 INFINITE Sunggyu sing Man In Love_High Society cut
infinite (SungGyu) facts ...
120211 INFINITE CONCERT - Real Story(SungGyu)
INFINITE L & Sunggyu + Kim Boa - Lucky
Infinite - Sunggyu 'Doggie Shampoo'~
[HD] Infinite Sunggyu 성규 - One Late Night In 1994 [romanization, eng sub] [LIVE]
Infinite Sunggyu confirm that he will leaving Woolim Entertainment!
130427 JTBC High Society - Sunggyu Cry
[Fancam] - 110118 - Woohyun 'Champion' @ Sůƙirα
Infinite Sunggyu and Myungsoo singing Lucky (Jason Mraz)
INFINITE sunggyu - because
[RADIO] 100804 Youngstreet - Sunggyu, L, Hoya, Dongwoo sing 바보 (Fool)
[Infinite] 120629 Boom's Young Street ; Sungyeol's OPPA voice when he read a fan's msg