Remaining 'Stars' must perform two dances, including one with a third partner

The remaining six couples on “Dancing with the Stars” are preparing for not one, but two dances -- with a twist.

The show is calling the second dance the Trio Challenge, in which all six couples must pick a professional dancer, who’s not currently competing, to perform with them.

The first dance will be ballroom. Disney star Roshon Fegan and Chelsie will do a foxtrot, as will actor William Levy and Cheryl.

Actress Melissa Gilbert and Maks are practicing a waltz, as are TV host Maria Menounos and Derek.

Green Bay Packer Donald Driver and Peta are working on a tango. Classical singer Katherine Jenkins and Mark are planning a Viennese waltz.

The dances have been revealed for the Trio Challenge, but not the non-competing professional partners.

Roshon and Chelsie will do a paso doble, as will William and Cheryl. Melissa and Maks are planning a samba, as are Maria and Derek. Donald and Peta are practicing a jive, while Katherine and Mark are working on a cha cha.

Roshon tweeted, “Rehearsal :) yall know how we do conquering the paso :) #TeamRochee.”

Donald tweeted, “The Tango and Jive is coming together. @PetaMurgatroyd and I are so happy!!!!”

After all the couples dance on Monday, two couples will be eliminated on Tuesday night. Last week, actor Jaleel White and Kym were eliminated after a Dance Duel with Roshon and Chelsie.

The dance competition airs Monday at 8 p.m. on ABC.

More information can be found at: beta.abc.go.com/shows/dancing-with-the-stars/index .