ET recently caught up with the 28-year-old dancer and her brother, Derek, during a break from rehearsals for their Move -- Beyond -- Live on Tour, which kicks off April 19, where she couldn't stop gushing about her upcoming nuptials with fiancé Brooks Laich.
"It's happening, I'll put it that way," she joked to ET's Cameron Mathison. "This is the time that worked for everybody. It's not necessarily happening soon soon, but it is coming up."
And one thing Julianne is especially looking forward to? Her first dance!
"I never thought that we would do [a choreographed dance], but [Brooks] really wants to do a first dance and have it be like a special thing," she said. "Even before we ever met, as a kid he really wanted to dance. He's always wanted to dance."
"One night we were kind of sitting around, and [Brooks] just started full out busting out the dance," she continued, telling ET Brooks never feels intimated dancing around her or Derek. "He is so himself and doesn't care at all what people think. He's like, 'Yeah, this is it!' He's good."
Julianne recently celebrated her Bachelorette party in Cabo San Lucas, Mexico, with her closest pals and a few celebrity surprises, including Nina Dobrev, Cindy Crawford and Kris Jenner, in attendance.
"I called Kris actually," Derek joked. "I was like, 'Hey, Kris, listen alright. You know what? Can you go surprise my sister for her bach? OK, thank you. Appreciate it.'"
"That was funny because that just kind of just happened," added Julianne. "They were on their own girls trip and I know Shelli Azoff and so she invited us over and we had lunch and stuff like that. I don't want to get into too much detail but I will say, to be able to have different generations coming together -- and they gave me tidbits of advice -- was really special. It was a really fun day."
"But yeah, my best friends are my family," she explained. "I mean, they're amazing. My sisters were there, we had three moms and a baby which is amazing, and yeah, it's fun because being in what we do and social media and everything, it's fun to be able to share things with your friends and with your fans."
And while Julianne has her hands full with wedding planning, the tour and judging season 24 of Dancing With the Stars, Derek has been busy directing and starring in Michael Buble's "I Believe in You" music video. The 31-year-old dancer filled in for Buble, so he could spend more time with his eldest son, Noah, 3, who is battling cancer.
"It was such a honor to direct that video and to be in it," said Derek. "I was actually driving in my car with my mom I got a phone call [that] was like, 'Hey, this is Michael,' and I'm like, 'Michael who? I don’t see the number.' 'It's Michael Buble.' And I’m like, 'Yeah, yeah, yeah.' And anyways, it end up being him and I have to say, I've never met him before, but he is the kindest and you can just see what kind of man he is even just through that phone call."
"It was beautiful and he just told me that he was so thankful that I was able to create that video for him," Derek added. "Obviously he's been going through an interesting time right now, and that that video brought some joy and some light into their lives."
Julianne chimed in, giving ET an idea of how their schedules will work while touring around these projects.
“Schedule wise, I'm going to be sleeping a lot, as much as I can, but I'll be coming back [to Los Angeles] every Monday," she explained. "Every Monday, holy cow! I can't believe Dancing With the Stars is about to start again. It's going to be fun, I'm excited."
"The thing that is kind of cool about it too is that when you're on tour, you kind of go into your own bubble and you kind of forget what's going on and you’re just there," she continued. "The fact that I get to come back every week I feel like that is actually really nice and I get to maybe sleep in my bed one night a week so we'll see."
That, of course, means some time away from Brooks.
"He's still in his [hockey] season, so we're going to try and do an every other week thing if he's done with his season where he comes on the tour for a week and comes back and yeah," she dished. "You got to make it work. I love it."