CAR-ISTMAS CRACKERS

Experts devise perfect playlist driving home for holidays

- BY CHARLIE BIGGS-THOMAS

A MUSIC expert has developed the world's happiest Christmas car playlist 'guaranteed' to keep everyone happy - according to science.

Dr Claire Renfrew, a music psychologist, sifted through hours of tracks to find the perfect songs, with all the tunes adhering to a scientific formula.

According to the equation, the secret to a dopamine-boosting song is a combination of being in a major key, featuring bright and energetic vocals, playing at 100-140 BPM, with a simple catchy chorus.

And the tune that scientifically hits all the right notes is Brenda Lee's Rockin' Around the Christmas Tree.

However, accompanying research of 2,000 people found Mariah Carey's All I Want for Christmas is You was the track which makes them most happy.