Four-member girl group Mamamoo are making their return to the music world with a free single, slated to release at the end of January. 

According to information given by Mamamoo's agency, RBW Entertainment, on Jan. 26, a free single will be released for all to listen and download on January 29.

With the free track dropping at the end of the month, the single plays as a teaser as it will garner more attention and anticipation for Mamamoo's comeback.

"Mamamoo's first full-length album will be released at the end of February," the agency added.

If released on schedule, this will be Mamamoo's first album in over 7 months as their previous album, "Pink Funky," was released in June 2015.  

Expectations for the Mamamoo's releases have been high ever since the group won the "Rookie of the Year" and "New Artist of The Year" awards in 2014.