Singer-turned-actor Im Siwan is scheduled to release his first self-composed song. The track is set to air December 12 at noon on tvN’s popular drama “Misaeng.” The song’s subject matter deals with the ups and downs of the lives of the workers on the show.

A representative of the drama was cited as saying, “Im Siwan composed the entire song himself. It can only be seen on ‘Misaeng’.” The show’s official OST album, which includes all tracks that appear on the show, is scheduled for release on December 24.

Siwan is having one of the best years of his career thanks to “Misaeng.” He has reportedly signed spokesperson contracts with 8 different companies from diverse fields like clothing, cars, banking, and food products. Im’s net worth has also shot up. Thanks to the good reviews of his movie “The Attorney” and the drama “Triangle,” Im is now worth over 2 hundred million dollars.

A member of the group ZE:A, Im’s entrance into the acting world has been successful to this point. He debuted as an actor in the 2012 MBC drama “The Moon that Embraces the Sun,” and has subsequently received rave reviews for his roles in KBS’s “Man from the Equator,” the film “The Attorney,” and MBC’s “Triangle.”