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Sadie Robertson and partner Mark Ballas have been wowing the judges on this season of Dancing With the Stars, and the two are preparing to compete in the semifinals on Monday evening. 

It's "definitely going to be a brawl in the last two rounds," Ballas dished to E! News when he and Robertson stopped by the studio on Friday, where they also chatted about Sadie's headline-making costumes (for more on Sadie's Duck Dynasty-approved looks, be sure to watch E! News tonight). 

But despite killing much of their competition, Sadie admitted that she's far more nervous now that it's down to the final five couples. So who did she turn to after experiencing a memory slip on stage last week? None other than Mark Ballas' former partner (and fellow conservative star!) Candace Cameron Bure

Sadie Robertson, Candace Cameron Bure, Dancing with the Stars, DWTS

ABC/Adam Taylor

"She actually had a lot of blackouts last season where she would forget some of the dance," Robertson shared. "So I had a little blackout Monday night and that never happens to me and I was texting her and was like, 'Hey, do you have any advice about the whole blackout situation? Because I'm kind of nervous'" 

Luckily, the former Full House star came to the 17-year-old's rescue. "And she was so sweet about it and very helpful," she says with a smile, shooting a silly glare at Ballas before jokingly telling him "thank you very much" (Ballas will also going on the Dancing with the Stars Live Tour, which kicks off Dec. 27th). 

"And I'm glad I texted her," the Duck Dynasty darling continued, adding, "She's become a really good friend of mine, her and her daughters." 

During the duo's chat with E! News, they also discussed Sadie's costumes, which, as fans of the series know, have not always been daddy-approved. 

NEWS: Sorry, dad! Sadie Robertson's DWTS costume couple be her raciest yet

Sadie Robertson, Mark Ballas, Dancing with the Stars, DWTS

ABC/Adam Taylor

But has Robertson herself ever felt uncomfortable with the racy wardrobe choices? Well, you'll have to tune in to E! News to find out! 

In addition to talking about this season of DWTS, Robertson also revealed that she has forged lifelong friendships and now counts Candace's daughter among her close pals. 

"Natasha [Candace's daughter] is my age and so we've been hanging out a lot, she's become one of my really good friends," she shared. 

For more from Mark and Sadie—including the scoop on her boyfriend as well as her brother's wedding—be sure to watch E! News at 7:00 and 11:00 tonight!