Singer Fat Cat has joined in to sing a OST for the SBS drama, "Queen of Ambition."

Today, the fourth OST, "Tears Rain" was released by Fat Cat. This is her first comeback after 11 months. 

This song is a slow tempo ballad and talks about someone who has gone through so much heartache and is yet faced with another break up. The melodious piano sound adds to the sad and emotional song. Fat Cat's vocals also matches well with the song.

The music director for the drama stated that the song was one to look out for because Fat Cat has been known for her amazing musical talent.

The song will first be played on today's episode of the drama.