Welcome to Mariah Carey season.

Though the Greenlawn-reared Grammy-winner certainly has year-round appeal, something special kicks in after Thanksgiving when people start hearing her holiday classic “All I Want for Christmas Is You” again. And this year is no different.

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Carey will perform the song as part of “VH1 Divas Holiday: Unsilent Night,” which airs Dec. 5, because she says it “offers a wonderful opportunity to perform for my fans over the holidays, which is my favorite and most festive time of year.” Also on Dec. 5, Carey will launch her third annual “All I Want for Christmas Is You” concert series at the Beacon Theatre — a nine-show run that stretches through Dec. 17. (It’s also probably not a coincidence that Carey’s reality show “Mariah’s World,” which debuts on E! at 9 p.m. on Dec. 4, will air through the holiday season as well.)

“We feel lucky, because it was the last major song to enter that Christmas canon,” Walter Afanasieff, who co-wrote the song with Carey in 1994, told Billboard. “Then the door slammed shut. [Although] I’m sure there’s going to be another one; there has to be . . . ‘Christmas’ just keeps growing and growing. I believe [it] will be the most successful, popular Christmas song of all time.”