Their second album was released in November 2003 and their first single "오래 오래 (Long Long Time)" was a huge hit as was their second single "사진을 보다가 (While Looking at the Picture)". This cemented their status as a popular group and consistent hit makers. During the hiatus between their 2nd and 3rd albums, Yoo left the group as he wished to pursue his own style of music, taking on the stage name Noblesse.
Their second album release in November 2003, along with their first single "오래 오래 (Long Long Time)" and subsequent hit "사진을 보다가 (While Looking at the Picture)", cemented their status as a popular group and consistent chart-toppers. During this period, Yoo left the group to pursue his own musical path under the stage name Noblesse.