DJ DOC have dropped "Happy Ending" featuring Yoo Sung Eun!

SEE ALSO: DJ DOC's Lee Ha Neul and Kim Chang Yeol hint at reconciliation

The lovely, upbeat track is about the innocence of two people in love who want to make their own song and create a happy ending to stand out among the sad breakup songs of the world. Yoo Sung Eun's clear vocals harmonize beautifully with DJ DOC's Kim Chang Ryeol for an upbeat melody that's sure to warm you this winter.

Listen to "Happy Ending" above, and let us know what you think in the comments below!