Mariah Carey has been a hit-making machine for about 30 years now. Maybe not so much lately, but she tends to have a surprise (or maybe a new husband) up her sleeve from time to time. Take her holiday classic All I Want For Christmas Is You, that is celebrating its 25th anniversary. The song managed to hit #1 on Billboard magazine's Hot 100 chart, giving Mariah 19 chart-toppers in her career - the most ever by a solo artist. Now she's released an anniversary version of the song for us all to enjoy. Thank you Mariah.