RED Velvet Irene, 'I'll believe it even if it's a doll.'

group RED Velvet Irene attended Music Bank' rearsal held at the public hall of KBS New Building in Yeouido, Seoul on the morning of the 30th.

About Red Velvet

Red Velvet is a South Korean girl group formed and managed by SM Entertainment. They originally debuted on August 1, 2014, with the single "Happiness" with the four-member line-up of Irene, Seulgi, Wendy and Joy.  Wikipedia