'Dancing With the Stars': Celebs Celebrate Halloween Tonight

— -- "Dancing With the Stars" celebrates Halloween today with the seven remaining couples performing Halloween-themed dances and a competitive dance-off.

The couple that scores the highest in the first round of dancing on tonight will receive immunity, saving them from elimination. In addition, they won’t have to participate in the dance-off and will automatically get five extra points added to their score. One of the remaining couples will get the boot.

One couple that's super-excited about their costumes is former pro football player Calvin Johnson, Jr. and his pro partner, Lindsay Arnold, who told ABC News, "We're going to be skeletons."

Race car driver James Hinchcliffe, on the other hand, isn't as thrilled as his partner Sharna Burgess about dancing as "Suicide Squad" villain The Joker and Harley Quinn.

"I asked at the start of the season for this. ... We went through a lot to make it happen," Sharna said. "And now [James] realized he has to shave his beard." Adds James, "Yeah, I'm not real thrilled about that part if I'm honest."

You can catch all of the performances tonight on ABC, beginning 8 p.m. ET.

Here's a rundown of the remaining couples and the songs they'll dance to tonight:

• * Marilu Henner & Derek Hough – Argentine Tango – “Sweet Dreams” by Emily Browning
• * Laurie Hernandez and Valentin Chmerkovskiy – Viennese Waltz – “Pure Imagination” by Jane Monheit
• * James Hinchcliffe and Sharna Burgess – Viennese Waltz – “You Don’t Own Me” by Grace ft. G-Easy from Suicide Squad
• * Calvin Johnson Jr. and Lindsay Arnold – Quickstep – “Dr. Bones” by Cherry Poppin’ Daddies
• * Terra Jolé and Sasha Farber – Cha Cha – “Day-O” by Harry Belafonte
• * Jana Kramer and Gleb Savchenko – Jazz – “Little Shop of Horrors” by Alan Menken
• * Ryan Lochte and Cheryl Burke – Tango – “Howlin’ for You” by The Black Keys