Get ready for an epic case of nostalgia.

'90s girl groups SWV—Cheryl "Coko" Gamble, Tamara "Taj" George and Leanne "Lelee" Lyons—and Xscape—Kandi Burruss, Tameka "Tiny" Harris, LaTocha Scott-Bivens and Tamika Scott—are reuniting for a once-in-a-lifetime performance on Bravo's new six-part limited series SWV & Xscape: The Queens of R&B. But their music revival doesn't come without tons of behind-the-scenes drama, as Kandi teased exclusively to E! News.

"You'll see all the ins and outs of what it takes to put on a performance like that together, but then also how you have two strong groups basically bumping heads," The Real Housewives of Atlanta star revealed. "We're bumping heads trying to figure it out and then, throughout that, we're also dealing with our own personal issues as a group—whether it's family issues, whether it's business issues where we may not be on the same page."

Despite disagreeing at times during the creative process, the reality star assured fans, "At the end of the day, you gotta see how we all are able to still try to be professional and give the fans what they want, even though everything behind the scenes is falling apart."

Kandi also promised Bravoholics that the show is "totally different from Housewives."

"I'll say the music aspect—yeah there are Housewives that come up every now and then and wanna sing—but it's nothing like having Xscape and SWV singing, okay?" the 46-year-old stated. "That is a major difference, because people are going hear the songs that they love all throughout the show, whether it's performing on stage or at rehearsal."

The music industry icons will also be "open books" when it comes to the various issues in their personal lives, Kandi said.

"I think a lot of people are curious how their favorite artists, what they are dealing with personally and how that translates to them hitting the stage," she added. "People may get so upset with their favorite artists but if you really got to see what they're going through at home or going through personally, then maybe people would have a little bit more sympathy for some of the artists out there, a little compassion."

Hear more from Xscape in the video above, and watch E! News Monday through Thursday at 11 p.m. for more info on the series.

SWV & Xscape: The Queens of R&B premieres tonight, March 5, at 9:30 p.m. on Bravo.

(E! and Bravo are both part of the NBCUniversal family)