Jordan Chiles and Ezra Sosa react to their scores after performing on Dancing with the Stars for the show’s 20th Birthday Party episode (Disney)

This season of Dancing with the Stars is nearing its end: Next week marks the semi-finals of season 34, as the remaining six couples all vie for a spot in the season finale, where they’ll have a chance to walk away with the Len Goodman Mirrorball Trophy. But first they have to get through episode 10: Prince Night.

The previous episode, which celebrated DWTS‘s 20th Birthday Party, saw fan-favorite Andy Richter say goodbye after fan votes rallied to keep the comedian competing on the show  longer than expected. The six remaining couples are  Alix Earle and Val Chmerkovskiy, Robert Irwin and Witney Carson, Whitney Leavitt and Mark Ballas, Dylan Efron and Daniella Karagach, Elaine Hendrix and Alan Bersten, and Jordan Chiles and Ezra Sosa.

DWTS fan-favorite Andy Richter and pro Emma Slater performed their final dance of the season during the show’s 20th Birthday Party episode (Disney)

Here’s everything we know so far about DWTS‘s next episode.

What is the DWTS theme week 10?

The theme for DWTS week 10, the penultimate episode this season, is Prince Night, honoring the work and legacy of music icon Prince. (Not to be confused with Prince William, who made a surprise cameo appearance via video chat during the birthday party episode to wish Robert Irwin good luck.)

Show co-host Alfonso Ribiero has said that this is the theme he is most excited about this season, promising some fun costumes he plans on wearing. “That is my night,” he said on the Dancing with the Stars Official Podcast at the start of this season while revealing all of season 34’s themes with co-host Julianne Hough and podcast host Joey Graziadei.

Original DWTS host Tom Bergeron returned to the ballroom, joined by hosts Alfonso Ribiero and Julianne Hough, for the show’s 20th Birthday Party episode (Disney)

What songs and dance styles is DWTS doing on Prince Night?

ABC announced the full lineup for songs and dances on Thursday. For the semi-finals, each couple will perform two dances: one in a dance style they have not yet done this season, and another redemption dance for a style previously done “that gives them the chance to show how far they’ve come.”

Alix Earle and Val Chmerkovskiy: Argentine Tango to “Little Red Corvette” and Viennese Waltz to “Purple Rain”

Robert Irwin and Witney Carson: Jive to “Baby I’m a Star” and Viennese Waltz to “WOW”

Whitney Leavitt and Mark Ballas: Cha Cha to “1999” and Viennese Waltz to “Slow Love”

Dylan Efron and Daniella Karagach: Tango to “I Would Die 4 U” and Cha Cha to “Kiss”

Elaine Hendrix and Alan Bersten: Foxtrot to “I Wanna Be Your Lover” and Paso Doble to “When Doves Cry”

Jordan Chiles and Ezra Sosa: Jive to “Raspberry Beret” and Argentine Tango to “U Got the Look”

Who is the guest judge on DWTS for Prince Night?

ABC did not announce a guest judge for Prince Night, and DWTS has not typically invited a guest judge to join the semifinals episode in recent years.

Flavor Flav appears as a guest judge on Dancing with the Stars (Disney)

Previous guest judges this season have included former DWTS pro Kym Herjavec, Wicked director Jon M. Chu, former DWTS pro Cheryl Burke, rapper Flavor Flav and former DWTS host Tom Bergeron.