Crush and Taeyeon of Girls' Generation have achieved an all-kill for three consecutive days after Crush's latest track "Don't Forget" was released.

On Jan. 22, when the track was released, it shot up to No. 1 on online music charts. Three days later, on Jan. 24 at 11 AM, it has stayed at that No. 1 position on the real-time charts of the eight biggest online music sites: Genie, Naver Music, Olleh Music, Mnet.com, Soribada, Bugs, and others. 

For this collaboration, Crush's agency, Amoeba Entertainment, joined up with SM Entertainment in order to bring the two artists together. 

Even among fierce competition from Suzy and Baekyuns collaboration, K. Will, and Lee Seungi's most recent song, the song has been able to stick it out at the top of the charts for a notabely long amount of time. 

A music video for the single was released on Jan. 21. Although Taeyeon was not included in the music video, she can be heard singing at around 2:40.