It's switch-up week on Dancing with the Stars!

Each celebrity is paired with a new professional partner for one week. Those scores will be combined with last week's, and one couple will be eliminated in the next round of the competition.

Maks Chmerkovskiy also joined the judges' table this week as a guest judge.

The first new pairing was Tamar and Louis, who danced a  Samba that earned a score of 29 out of 40.

Hayes and Allison danced a Viennese Waltz that earned a score of 31.

Paula and Mark danced a Jive that earned a 26 out of 40.

Alek and Emma's Rumba earned a score of 29, and also suggested these two might become more than just dance partners.

Bindi and Val's Cha Cha earned a score of 37 out of 40.

Carlos and Lindsey danced a Quickstep that earned a score of 39.

Alexa and Derek were up next, dancing a  Tango that earned a score of 40, the first perfect score of the season.

Andy and Sharna danced an Argentine Tango that earned a score of 36.

Nick and Witney finished the night with a Paso Doble that earned a score of 35 out of 40.