Listen to Fifth Harmony Radio on iHeartRadio

Fifth Harmony Radio

Mariah Carey's "All I Want For Christmas Is You" is arguably the best Christmas pop song of all time, and every year somebody tries to do it justice (remember the remake featuring Justin Bieber a few years back?)

This year, Fifth Harmony has taken on the challenge, and, well, it may just be the best cover of the song we've ever heard! Check out Lauren, Camila, Normani, Dinah and Ally's impressive rendition of the song and let us know your thoughts in the comment section below! Did they do Mariah justice?