'Dancing With the Stars' Reveals the Switch-Up Week Couples

Dancing With the Stars' Switch-Up Week is finally here!

Season 21 of DWTS has already had its fair share of memorable moments, but the excitement's about to be taken up a notch when the contestants have to dance with new pro partners.

Here are the surprise pairings for Switch-Up Week, which will air Monday, Oct. 12:

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Tamar Braxton will be dancing with Louis Van Amstel

Nick Carter will be dancing with Witney Carson

Paula Deen will be dancing with Mark Ballas

Andy Grammer will be dancing with Sharna Burgess

Hayes Grier will be dancing with Allison Holker

Bindi Irwin will be dancing with Val Chmerkovskiy

Alexa PenaVega will be dancing with with Derek Hough

Carlos PenaVega will be dancing with Lindsay Arnold

Alek Skarlatos will be dancing with Emma Slater

And the new pairings aren't the only exciting element of the highly anticipated episode -- DWTS' resident bad boy, 35-year-old Maksim Chmerkovskiy, will return as a guest judge alongside Carrie Ann Inaba, Bruno Tonioli and Julianne Hough.

ET caught up with Chmerkovskiy in May, when he admitted to his own missteps on the hit ABC show.

"I may have come across as angry in some instances in the past," he said candidly. "I've made mistakes. I've reconciled with some people."

"I'm also an entrepreneur and I'm interested in other things," he added about why he decided to leave the show after winning season 18's coveted mirrorball trophy with Olympian Meryl Davis.

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