T-ARA, Speed, The SeeYa, and Seunghee's collaboration, "Don't Forget Me," was released on February 10.

MBK Entertainment, formerly known as Core Contents Media, created a winter special single album with their affiliated artists.

The song, "Don't Forget Me," was written by the songwriter, Ahn Young-min.  Ahn Young-min wrote Taeyeon's "I Love You" and Hyorin's "Driving Me Crazy."  

The lyrics of "Don't Forget Me" yearns for their loved one and hopes he or she will return.

The music video has also been released and can be viewed on YouTube.  The music video shows the artists singing and playing at a ski resort.