Amber unveils the fourth teaser image + to release 'Beautiful' lyrics video today

f(x)'s Amber has unveiled the 4th teaser image for her upcoming solo debut.

Amber shows her boyish charm by dressing in a long red jacket and matching it with a black top hat, while showing a serious look towards the camera.

In particular, Amber will release the lyrics video for the track 'Beautiful' in the afternoon today on February 9th. The song is said to be accompanied by the warm sound of an acoustic guitar and it will showcase Amber's unique charm through her self-written lyrics.

Meanwhile, Amber's 1st solo mini album 'Beautiful' will be available on February 13th. The title track 'Shake That Brass' will feature Girls' Generation's Taeyeon.