IU Thanks RIIZE’s Anton, Proving Their Long-Standing Friendship

IU recently made a comeback. To celebrate, her fans began trending the “IStanU” challenge. A surprising participant in the challenge was none other than RIIZE’s Anton. He posted the challenge to his group’s social media.

IU made sure to indicate that she watched his challenge. She reposted a screenshot of his challenge on Instagram, praising him with “he’s totally a pro…”

She even made sure to promote him by writing his name and group in the corner. IU practically watched Anton grow up. IU is a close hoobae of Anton’s father, Yoon Sang. In fact, prior to Anton’s debut, Anton once posted about a pair of Louis Vuitton shoes gifted to him by IU. He even talked about the meal they grabbed together. IU also followed his personal Instagram account pre-debut.