Blazin' Or Blasé: Mariah Carey's Glittery Dresses Light Up The Rockfeller Christmas Tree Lighting

11/29/2012 03:32 pm ET | Updated Jan 29, 2013

We all know how much Mariah Carey loves Christmas. Just take a look at all the holiday albums she has released over the years. The American Idol judge joined pop's reigning prince Justin Bieber on stage at Rockefeller Center for NBC's annual Christmas tree lighting ceremony. Mariah wore a red sparkling tulle skater dress embellished with silver sparkles, paired with long over-the-elbow red gloves.