4 Things Show with Sunggyu - LEE SUNGJONG

140726 Music Core - Lee Sungjong and intense blue eyes ~
Show Champion Backstage - Lee Sungjong
140723 Show Champion Comeback: Diamond and Back - Lee Sungjong

MyungJong - synchronized in going “wooh!” and in clapping

140722 KSY Radio - MyungJong (heh Kim Myungsoo pls)

MelOn Music Story: #Back MV Making - Lee Sungjong 
INFINITE #Back OFFICIAL MV - Lee Sungjong

WOWOWOWOWOW LEE SUNGJONG AND HIS TUMMY SKIN ♥o♥

140718 Music Bank Comeback (Diamond & Back) - Lee Sungjong