Rapper Swings and Vasco will hit the stage at Seo Taiji's concert 'Christmalowin.'

The two will perform "Classroom," "Hayeoga," and "Comeback Home" with the legendary Korean hip hop star and the Seo Taiji Band.

Vasco said, "I grew up listening to Seo Taiji's music, and being able to perform with him on stage is one of the greatest honor of my life."

Swings said, "I can't believe I'll be on the same stage as Seo Taiji, bbooing bboing."

'Christmalowin' is a concert celebration Seo Taiji's comeback in five years. It is also his 22nd year since debut.

A rep for Seo Taiji said they invited Swings and Vasco to make the stage more of a music celebration. They said Seo Taiji has been working hard to make the stage and systems the best they can be for the performances.