"It's expensive to be me," Jayne told ET, when asked about the song's vibe in December. "We have some great, new choreography on the way [for the video] that I think is pretty great, we have a drop split, and all kinds of stuff like that."
She's not the only reality star competing this season, however. Fresh off The Bachelor, Nick Viall will be busting out his best dance moves with returning pro Peta Murgatroyd, who gave birth to her first child, son Shai, just two months ago. The two will be wowing the crowd with a Cha Cha to "Let Me Love You" by DJ Snake and Tiesto featuring Justin Bieber.
"I'm still working on [the first dance]," Viall told ET on Tuesday. "I'm very, very excited about the song Peta and I have to dance to."
"She's been very supportive. She might be slightly more excited than I am," he joked. "It's going to be fun. [I] just want to have fun with it. I have a great partner in Peta, and if I'm lucky enough to stick around, hopefully it's going to be fun for America to watch her journey -- having just had a baby boy and coming back from that."
Even though they've only worked together for a few weeks, Viall says the two are "almost like brother and sister" at this point.
"We'll be dancing, and obviously dancing's meant to be romantic and sexy and things like that, but we really just have this goofy, playful thing," he added. "[Her fiancé] Maks [Chmerkovskiy] has been very gracious and kind. She's a goofball, I'm a goofball. I feel like our team chemistry is really good."
Heather Morris, best known for her role as cheerleader Brittany Pierce on Glee, will be starting her first week in the competition with a Viennese Waltz to Ben Rector's "Make Something Beautiful." Her partner, Chmerkovskiy, told ET on Tuesday that he feels the dance style is a "safe choice."
"Start slow and spinny and then take it from there," he explained. "It's cool. There's a lot of responsibility and pressure. [Heather] would say in every rehearsal, 'Listen, don't put pressure on yourself, just -- let's do our best and see where we land in the competition.'"
"We need to start somewhere, and I think there are amazing potential performers out there," he continued. "We just compare this performance value at the end of the day. Who stood out, and for what? So we cannot compete with [someone like] Chris Kattan in humor, but we'll definitely do our best physically and I think that's a high card obviously."