[4] Before officially debuting, Glam was featured on 2AM's song "Just Me" from the boy band's 2010 album, Saint o'Clock.

Glam and BTS were also featured artists on Lee Hyun's song "Bad Girl" from the singer's 2011 album, You Are Best of My Life.

[5] The group also gained spotlight after member Dahee provided the vocals for the VOCALOID 3 product SeeU.

[9] On March 15, Glam made their second comeback of the year with the single, "In Front of the Mirror" which combined genres including Europop, trot, and hip hop.

[11] Dahee and model Lee Ji-yeon were later identified as the women involved and were charged with blackmailing the actor for ₩5 billion.