Kylie Minogue and Dannii Minogue, Australia's Most Valuable and Precious Exports, have officially done it again.

It's a rare thing indeed, but each and every time the two pop queens team up, the results are always pure magic, from their tag-team, big-haired "Sisters Are Doin' It For Themselves" duet on Young Talent Time in 1986 all the way up to their gloriously triumphant 2008 cover of ABBA's "The Winner Takes It All."

The two returned at long last to the studio together this year to record "100 Degrees," a stomping, sweltering original track featured on Kylie's new Christmas album, Kylie Christmas. As you may or may not already know, it's atually real hot in Australia during Christmas time ("I'm burning up, bay-beh!"), which is why KM opted to grab her little sis and pen a tune dedicated to the high temperatures of the season. It's not only a fabulous, string-filled disco stormer, but objectively the gayest Christmas song of all time. (Eat your heart out, "Last Christmas"!)

Mercifully, the duo opted to share their "100 Degrees" experience in the form of a behind-the-scenes music video, in which we have the absolute pleasure of watching the Impossible Princess and the Queen of Love & Kisses hit the booth, do some shimmying in the studio and generally get wonderfully glam and giddy together. It's hard not to crack a smile while watching — and once they hit that "we want disco ni-i-i-i-ight!" peak, you'll be reduced to nothing more than a puddle of glitter, eggnog and tears.

And it doesn't stop at the video: The two will perform the song live during the X Factor Australia finals on Tuesday (Nov. 24) — their first live televised duet in almost exactly 30 years. Best. Christmas. Present. Ever. Thank you, Santa!