The holiday season is officially here, people! Tonight, the 16th Annual Christmas in Rockefeller Center event airs at 8pm EST on NBC (with an additional live hour kickin' off at 7)—and marks what seems like the millionth time Mariah Carey has performed in front of the famous tree. Ever since her version of All I Want For Christmas Is You dropped in 1994, MC has been the queen of rockin’ holiday ensembles. So, it's time to look back at the Mariahs of Christmas past—from her Santa crop top to this year's Cruella de Vil-esque gown.