The biggest party is now longer and more fun as "Dancing with the Stars" season 20 will now be holding its revelry for two episodes each week. This will go on until the show determines the winning couple out of the six remaining pairs vying for the Mirror Ball Trophy. 

The celebrities and their professional dance partners will groove to songs picked by fans in Week 8, which is themed "America's Choice." Here is the list of what viewers picked for the contenders: 

Contemporary

• Chris Soules and Witney Carson  — "Lay Me Down" by Sam Smith
• Robert Herjavec and Kym Johnson — "Champagne Kisses" by Jessie Ware

Paso Doble

• Nastia Liukin and Sasha Farber — "Centuries" by Fall Out Boy

Rumba

• Rumer Willis and Val Chmerkovskiy— "Perhaps, Perhaps, Perhaps" by Doris Day

Viennese Waltz

• Riker Lynch and Allison Holker— "What Now" by Rihanna

Tango

• Noah Galloway and Sharna Burges— "Geronimo" by Sheppard

But the viewers' power extend to having a say on the set design and visual effects as well as the contestants' wardrobe. The competitors, on the other hand, will not be dancing a single routine as there will also be a trio challenge. Here's how that will go down.

Trio Challenge

• Nastia and Sasha — Jive with Derek Hough
• Rumer and Val — Paso Doble with Artem Chigvintsev
• Riker and Allison — Jazz with Brittany Cherry
• Noah and Sharna — TBD with Emma Slater
• Chris and Witney — Paso Doble with Lindsay Arnold
• Robert and Kym — Samba with Jenna Johnson

After this, the scores from last week's show and in the upcoming episode will send two couples to the end of their journey on Tuesday. On the same day, Josh Groban and Carly Rae Jepsen will take the stage to sing "Somewhere Over the Rainbow" and "I Really Like You," respectively. During the former's performance, dancer Maddie Zeigler will perform. Travis Wall, Allison Holker and Jenna Johnson will kick off the show with a contemporary dance.

"Dancing with the Stars" season 20 week 8 will air on May 4.