Who Sang It Better? Vote in the 'O Holy Night' Sing-Off: Rhema Marvanne vs Celine Dion (VIDEO)

(Photos: YouTube Screenshots/Rhema Marvanne, Andres Diaz)

Music is not a competition – until it is. "American Idol," "The Voice," "The Sing-Off" et al. say so. So we're joining the fun.

A 7-year-old Rhema Marvanne recently made us fall on our knees with her 2009 belting of "O Holy Night." But I'm wondering how you think her performance sizes up to one by, say, Canadian diva Céline Dion!  That's lofty competition for little Rhema, but it's quite a compliment to be in the running.

Here's Rhema Marvanne's rendition:

And here's Céline Dion's entry in the Sing-Off. Be sure to vote below!