[1] It is the only SS501 album not to feature members Park Jung-min and Kim Hyun-joong.

With Kim Hyun-joong busy filming with Boys Over Flowers,[3] and Park Jung Min with his musical debut in Grease as "Danny Park",[4] the remaining three members formed 'SS501 Project Group' with Heo Young-saeng as the leader.

They released a project album named U R Man in November 2008, with a high tempo dance track "U R Man",[2] which the three remaining SS501 members promoted by themselves, with the exception of some special performances that included all five band members.

[3] In addition with the title track, "U R Man", the album also includes the members' first solo songs: "Is It Love?

[2] In March 2009, SS501 released a limited edition album in Japan, which comes with four additional tracks not included in the Korea version.