A PEOPLE exclusive clip from the upcoming installment also teases pig, black swan and snail costumes

Stack 'em up!

PEOPLE can exclusively reveal the newest addition to The Masked Singer season 5's cast of disguised celebrities: Russian Doll. In a PEOPLE exclusive teaser, provided by Fox, Russian Doll shows off their ability to multiply.

"They multiply!" judge Jenny McCarthy says of the two Russian Dolls in the clip. "That means they could multiply more."

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russian doll, masked singer
Credit: Fox

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The teaser also gives a sneak peek at snail, pig, black swan, seashell and porcupine costumes that haven't been announced yet. Chameleon, Grandpa Monster and Phoenix have officially joined the season 5 lineup with Russian Doll so far.

The upcoming installment will switch up the show's format by adding wildcard contestants who will crash the show and battle it out for a chance to join the competition. The 10 original celebrities will be split up into Group A and Group B, with wildcard performers jumping in and taking the stage at the end of the episode for the opportunity to unseat another contestant in the group and join the race for the Golden Mask trophy.

RELATED VIDEO: Nick Cannon Tests Positive to COVID-19, Temporarily Steps Down from The Masked Singer Hosting Duties

The season 5 contestants boast a combined 26 Grammy nominations, nine multi-platinum singles, four Academy Award nominations, three Super Bowl appearances, six gold medals and two world records.

niece Nash
Credit: the masked singer/ youtube

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When The Masked Singer season 5 premieres in March, actress Niecy Nash will be standing in for Nick Cannon as host because the father of four, 40, tested positive for COVID-19 as filming began earlier this month. Nash, 50, served as a guest judge last season. Regular panelists Ken Jeong, Nicole Scherzinger and Robin Thicke, as well as McCarthy, 48, will all be returning.

The Masked Singer season 5 premieres March 10 at 8 p.m. ET on Fox.