MAMAMOO's Solar and Kassy have revealed special music videos for their duet track "A Song from the Past".

Solar and Kassy are angels in white in a beautiful green garden for their 'outdoor' MV, while they take on a more retro concept in their 'indoor' MV. "A Song from the Past" is an emotional collaboration ballad about memories from the past.

Watch Solar x Kassy's outdoor MV for "A Song from the Past" and the indoor MV below, and let us know what you think of their duet ballad!