On the January 28 Lunar New Year special , f(x)’s Luna and her older twin sister Park Jin Young competed and sung an ‘Immortal Song’.

Luna took her sister for the holiday special and opened up that her family has an inclination in music. Her twin sister is a vocal major, while their older brother was a classical major specializing in composition.

The lovely pair sang a song which is dedicated to their father, Insooni’s “Father”, which was composed and arranged by their brother just for their ‘Immortal Song’ performance.

Check out their amazing and touching performance from Immortal Song below!