Miss Universe 2012 is taking place on Wednesday, Dec. 19, at the Planet Hollywood Resort & Casino in Las Vegas, Nevada. For their sake, these beauties better not be worrying about the Mayan calendar end of the world predictions. One of them will start a grand new chapter with a shining, shimmering crown at the end of the pageant.

In one of the pictorials for the 61st Miss Universe pageant, contestants embrace the holiday season in cute Christmas outfits. They let their sexy side out with some holiday fun vibe. (Click 'Start' to see the photos.)

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Miss Universe 2012: The Who, Where, and When

Andy Cohen and Giuliana Rancic will host the finals night at the Planet Hollywood.

Las Vegas will be home to eighty-nine of the most beautiful women around the world throughout the competition.

The competition will be telecast live on Dec. 19 at 8 pm ET (2 am GMT) via NBC. About 190 countries will witness the annual event.

Miss Universe Australia 2012: Renae Ayris

Twenty-two-year-old Renae Ayris, a model and dancer from Perth, will represent Australia in the most prestigious beauty competition.

Renae started modeling at 15, and her work has taken her to Germany and Indonesia, among other countries. Now she will meet the beauties from 88 other countries.

Standing at 5 feet and 9.5 inches tall, the Perth beauty effortlessly exudes charm and confidence in all her photos. She has been capturing her own Miss Universe on Twitter via her @RenaeAyris account.

Miss Universe Beauties: Forget the panic, there's no stopping Christmas in 2012

For the 89 beautiful women who will compete on Dec. 19 in Las Vegas, life has only just begun. See the gorgeous pageant representatives from Trinidad and Tobago, Bahamas, Thailand, and Mexico in their "Merry Christmas" swimsuit photoshoot. (Start the accompanying slideshow.)

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