Amber and Luna have released more teaser images for their 'SM Station 2' track.

The two f(x) girls will be singing the first 'SM STATION 2' song released in 2018. The song "Lower" is a progressive house track that matches Amber and Luna's voices to a catchy synth sound.

Check out the teasers above and below, and get ready for January 5 at 6PM KST.