Kassy is the voice behind "I'll Pray For You" for the 'Castaway Diva' OST.

The music video follows Seo Mok Ha (played by Park Eun Bin) as she gets stranded on an island and moves on to become a top star before returning. "I'll Pray For You" is an uplifting, hopeful song about praying for someone throughout the hard times and sad times.

Listen to Kassy's "I'll Pray For You" above, and let us know what you think in the comments below.