With his much anticipated album The 20/20 Experience 2 of 2 just on the horizon, Justin Timberlake releases his new single "TKO."

Timberlake teased song number four from his upcoming album earlier today with an Instagram photo as well as a few video snippets that included footage of him in the studio with Timbaland. The song describes Timberlake's infatuation with a woman that he thought he got over from a previous relationship. However, after seeing her out with another man, his emotions get the best of him.

His first single off of The 20/20 Experience 2 of 2, "Take Back the Night," has had moderate success since being released in July, peaking at no. 29 on the Billboard Hot 100 chart. Justin Timberlake's The 20/20 Experience 2 of 2 will be released September 30.

RELATED: Justin Timberlake Unveils "The 20/20 Experience: 2 of 2" Tracklist
RELATED: Justin Timberlake Confirms Drake and Jay Z on "The 20/20 Experience 2 of 2"
RELATED: Justin Timberlake Says He Spoke With Kanye West and They're Cool Now