IU has personally invited an elderly fan to one of her US concerts after the fan went viral on X (formerly Twitter).Last week, an elderly fan of IU who goes by “Zev Does KDrama” on YouTube went viral on the social media platform X after being noticed by fellow fans of the South Korean singer.The post, which has since received over 6,700 likes and 1,200 retweets, featured screenshots of Zev’s YouTube channel.