"Voice of Korea" runner-up Yoo Sung Eun participated in the "Childless Comfort" OST.

The JTBC drama stars Lee Soon Jae, Yoo Dong Keun, Kim Hae Sook and a lot of very experienced veteran actors.

For 6 episodes in a row, the show acquired record ratings for the drama itself. The OST title song was released at noon on Friday.

The OST's title song was performed by Yoo Sung Eun, who was a favorite on "Voice of Korea" and this will be her first attempt at a solo performance and in an OST.

Yoo Sung Eun's "Candy Kiss" is a house-type song, with a very bubbly melody and honest lyrics. Another song is "Confess Song," which is set to become the theme song for many couples.

"Candy Kiss" was written by musical supervisor Kang Dong Yoon, who has had a very close relationship with the writer. He's one of the key supporters for her dramas and also worked on the OST for "Bridal Mask."