Wham! may have got the official Christmas number 1 in the UK, but Mariah has dominated on TikTok. Mariah Carey’s All I Want For Christmas Is You continues its reign as a festive favourite, becoming TikTok’s most popular Christmas song of 2024. Garnering over 20 million video creations this year alone, the song has surpassed Wham!’s Last Christmas, which still holds an impressive 18 million creations. Despite Carey’s TikTok triumph, Wham! celebrated a win of their own by taking the official UK Christmas number one on Friday. Although, the Queen of Christmas is proudly sitting atop Billboard’s Hot 100 right…