Girl group A Pink's member Oh Hayoung promoted their song "Mr. Chu".

Today, Oh Hayoung posted on her Twitter, "A Pink 'Mr. Chu'. Please show us a lot of love. The song and the M/V were released together" along with their new album jacket photo.

A Pink released their 4th mini album Pink Blossom and its title song "Mr. Chu" ranked 1st place on 6 different music charts.

Photo Credit: Oh Hyoung Twitter