Singer Henry released his new song, "1-4-3" MV teaser online featuring f(x) Amber.

On August 19, SM released the teaser video on various social media platforms and received much attention from viewers.

The two artists teamwork and compatibility were seen in the video and gained much interest from fans.

Earlier, Henry also released an acoustic version of the song online and gained attention as well.

On the other hand, "1-4-3" will be released on August 23.