Duet As One sang an OST for ChannelA's weekend drama 'Immortal Classic' called�"Regret and Longing".

"Regret and Longing", which was released April 27th, is the theme song for the drama's protagonist, played by actress Park Sun Young. The vocals of Lee Min Young and Krystal Chae give a warm feeling that fits perfectly with the character, who is a woman filled with resentment and sorrow because of one-sided love.

The song was first played on last weekend's episode when Geum Hee (Park Sun Young) went through emotional turmoil because of Sung Joon (Han Jae Suk) and Yong Joo(Lee Ha Nee).

As One stated,�"Thankfully, our voices go really well with the love scenes and emotional scenes in dramas; we've been singing in a lot of them. This song portrays the strenuous hearts of lovers well, and it should�compel�sympathy from viewers."

They further added, "We participated in Super Junior Donghae's new single "Only U". We haven't made our comeback yet, but we are constantly participating in other people's albums and OSTs [to prepare]."

Currently on 'Immortal Classic', Yong Joo declares war on Geum Hee in a battle for the status as a better cook.



Source + Picture: OSEN