All I Want For Christmas Is You was written in August 1994 by Carey and her songwriter partner, Walter Afanasieff.

It famously took them just 15 minutes to come up with the catchy lyrics, which went on to outlast generations of successive Christmas hits.

The track found fresh fame in the 2003 rom com Love Actually, where it was performed on-stage at a school performance during which Hugh Grant and Martine McCutcheon’s characters finally hook up following an entire film-load of brewing sexual tension (above).

Mariah Carey’s smash-hit Christmas track reaches No. 1 in the charts (finally!)