TEEN TOP's charmer Niel released a teaser image for his upcoming solo album, 'oNIELy,' heightening the anticipation. 

On February 2, TEEN TOP's official homepage and their various social media accounts revealed a teaser image for his solo debut. The title for the album is a clever combination of the words 'Niel' and 'Only,' 

In addition to releasing the teaser image, a D-day countdown clock has been set up on TEEN TOP's official homepage.  For this upcoming album, the idol vocalist revealed that he will be showing all of Niel, suggesting that he will be releasing much more of his hidden charms that have never revealed to the public.

Meanwhile, Niel's solo debut album is slated for release on February 16.