Pop star JoJo Siwa will compete as part of the first same-sex pairing on “Dancing With the Stars” for the show’s upcoming 30th season.

Lindsay Arnold is mourning the death of her mother-in-law, Jennifer Cusick. The love and gratitude we feel for the time we had on this earth with Jennifer is beyond anything you can put into words," Arnold shared. This will mark the second week in a row that Arnold will not be dancing with her partner, Sean Spicer. "It's Boy Band/Girl Group Night this Monday on @dancingabc I'll be dancing an Argentine Tango and a Foxtrot with the amazing @jennajohnson again this week," Spicer shared on Instagram. RELATED CONTENT:'DWTS': Sean Spicer to Perform With Jenna Johnson Again on 'DWTS''DWTS' Cast Offers Update on Lindsay Arnold After Family Death: Will She Dance Next Week?

The cast of Dancing With the Stars is sending their love to Lindsay Arnold. The pro was forced to skip Monday night's episode after an unexpected death in the family, with Jenna Johnson stepping in to dance with Arnold's partner, Sean Spicer. Spicer told ET's Keltie Knight after the show that he had just heard from Arnold. As for whether Arnold will be back in the ballroom next week, Johnson said it's still up in the air. RELATED CONTENT:'DWTS': Lindsay Arnold's Family Tragedy Forces Her to Skip Dance With Sean Spicer'DWTS': Carrie Ann Inaba Explains Her 'Frustration' Over Sean Spicer Being Safe, Calls Out Voters (Exclusive)

Sean Spicer took to the floor on "Dancing With the Stars" Monday night, shimmying along to "Spice Up Your Life" with partner Lindsay Arnold. But what's really getting attention is the lime-green shirt he donned for the number. As a bride and groom were saying "I do," police say her father disconnected the home's gas line, prompting it to explode. For these stories and more, watch Inside Edition. RELATED STORIES'Lucky Guy' Wins $4.6 Million Lottery Jackpot After Surviving Cancer TwiceFather Charged With Manslaughter After 11-Year-Old Son Is Run Over by Boat: PoliceCannonball From Civil War Found Lodged in Missouri Tree

Lindsay Arnold is opening up about the all-new season of Dancing With the Stars! "We're already having fun and we're going to continue to do that," she added. For the premiere, Spicer and Arnold rocked the ballroom to an energetic Salsa to the Spice Girls' "Spice Up Your Life." Last month, Spicer told ET that he decided to say "yes" to DWTS because he wanted to "have some fun in life" and "do something that was a new experience." And for the first time, I think it'd be great to tell my kids, 'Hey, watch me on TV!'"