벌빨간사춘기 (Bolbbalgan4) is a folk duo under Shofar Music from South Korea. The duo is composed of two former participants of Superstar K6, a South Korean television talent show - Ahn Ji Young and Woo Ji Yoon. They officially debuted on April 2016 with the song "Ring (반지)" from their first mini-album. Their first mini-album, Red Ickel, was released on April 22, 2016.
On August 29, 2016 they released their first full album titled Red Planet.