In the lyrics, Kim describes herself as being "fifteen", although she was later proven to be only thirteen at the time of her performance. She thus remains the youngest ever Eurovision winner and one of the youngest-ever performers at the Contest. Her record is unlikely to be challenged, as the Contest rules were changed to specify that performers must turn at least 16 in the year that they perform. According to author and historian John Kennedy O'Connor in his book "The Eurovision Song Contest - The Official History", the Swiss (who had placed 2nd) petitioned to have the Belgian win nullified after Kim's age was revealed.