Stars to Compete on All-New MASTERCHEF CELEBRITY SHOWDOWN on FOX, 1/2

Get ready for the ultimate snack-down when Michelin Star Chef Gordon Ramsay and renowned pastry chef Christina Tosi invite celebrities into the MASTERCHEF kitchen to show off their culinary skills in exciting head-to-head contests for charity on the all-new MASTERCHEF CELEBRITY SHOWDOWN, airing Monday, Jan. 2 (8:00-10:00 PM ET/PT) on FOX.

The two-hour special puts each celebrity competitor to the test in the kitchen, and also features the first-ever battle royale between MASTERCHEF's own Gordon Ramsay and Christina Tosi! In each face-off, more than bragging rights are at stake - the winners earn donations to the charity of their choice.

Here are the MASTERCHEF match-ups:

Trai Byers and Grace Gealey Byers vs. Nene and Gregg Leakes

Two cooks are better than one in the couples' duel. Find out who rules THE KITCHEN when EMPIRE stars Trai Byers (@JustTrai) and Grace Gealey Byers (@LadyGracebyers) represent Saving Our Daughters (savingourdaughters.org/), while TV personality NENE LEAKES (@NeNeLeakes) and her husband, Gregg (@GreggLeakes), compete for Broadway Cares (broadwaycares.org/).

Cheryl Hines vs. Kal Penn

SON OF ZORN star Cheryl Hines (@cherylhines) cooks for United Cerebral Palsy of Central Florida (ucpcfl.org/), while SUPERHUMAN host Kal Penn (@KalPenn) represents the United Nations Relief and Works Agency (unrwausa.org/#tagline).

Ronde Barber and Tiki Barber vs. Joel Madden and Benji Madden

It's a test of the twins when former NFL superstars Ronde Barber and Tiki Barber (@TikiBarber), representing Kulture City (kulturecity.org/), go up against Good Charlotte founding members Joel Madden (@JoelMadden) and Benji Madden (@Benjimadden), who help provide assistance for musicians in times of need via MusiCares (grammy.org/musicares).

Anthony Anderson and Chef Gordon Ramsay vs. Jordana Brewster and Chef Christina Tosi

In the final face-off, it's Emmy Award nominee Anthony Anderson ("black-ish") with MASTERCHEF's own Chef Gordon Ramsay vs. LETHAL WEAPON's Jordana Brewster, paired with Chef Christina Tosi. Fans have seen them in the MASTERCHEF kitchen and as judges before, but now Gordon and Christina go head-to-head and have to answer to the harshest critics of all - MASTERCHEF Season Seven winner Shaun O'Neale and two contestants from the upcoming fifth season of MASTERCHEF JUNIOR. Anderson will cook to support Watts/Willowbrook Boys & Girls Club (wwbgclub.org/), while Brewster competes for No Kid Hungry (nokidhungry.org/).

MASTERCHEF is produced by Endemol Shine NORTH AMERICA and One Potato Two Potato, and is based on a format created by Franc Roddam and Endemol Shine. Elisabeth Murdoch, Eden Gaha, Robin Ashbrook, Gordon Ramsay, Adeline Ramage Rooney, Patricia Llewellyn and Ben Adler serve as executive producers. "Like" MASTERCHEF on Facebook at facebook.com/MasterChef. Follow the series on Twitter @MASTERCHEFonFOX and join the discussion at #Masterchef. Follow the judges on Twitter: Gordon Ramsay - @gordonramsay; Christina Tosi - @christinatosi. See photos and videos on Instagram by following@masterchefonfox.

Renowned for highly successful and award-winning original programming, multi-Michelin star chef Gordon Ramsay produces TV shows on both sides of the Atlantic, seen by audiences worldwide, including his FOX shows, HOTEL HELL, MASTERCHEF, MASTERCHEF JUNIOR, MASTERCHEF CELEBRITY SHOWDOWN and the upcoming THE F WORD, as well as Bravo's "Best New Restaurant" and Food Network's competition series, "Food Court Wars."

In the U.K., he's produced "Gordon Ramsay Behind Bars" and "Gordon Ramsay's Great Escape" for Channel 4; food biography and nostalgia series "My Kitchen" for UKTV's Good Food Channel; two instructional cookery series, "Ultimate Home Cooking" and "Ultimate Cookery Course" for Channel 4, and the first two seasons of "Matilda and the Ramsay Bunch," starring Tilly Ramsay for U.K. children's channel CBBC, all under his One Potato Two Potato banner.

His next-generation multi-media production company, STUDIO RAMSAY, has a joint venture with All3Media to develop and produce both unscripted and scripted television shows, creating new formats and innovative programming that includes a scripted arm focused on food-related themes, and development of new talent on a global front. The catalogue of programs that Ramsay has worked on historically with All3Media via One Potato Two Potato, together with new original content he's currently developing make for a unique and dynamic production and distribution partnership.