EXCLUSIVE: Mark Ballas Reveals Derek Hough Is Helping Him With Bachelor Party Plans

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Mark Ballas is ready to say "I do!"
The 30-year-old dancer, who proposed to longtime girlfriend BC Jean last November, returned to the Dancing With the Stars stage Monday night for a show-stopping performance of "December, 1963 (Oh, What a Night)" in character as Frankie Valli from the Broadway production of Jersey Boys. ET caught up with Ballas backstage, where he gave us an update on how wedding planning with the singer has been going.
"It's all coming together, man," Ballas told ET's Cameron Mathison. "We finally got the invitations out. That is the hardest part, you know, I think everybody nowadays is so digital, so getting someone to put something in the mail and send it back is like -- especially with all these guys, like all my dancer friends, I've been chasing them like, 'Yo, you need to send.' But I'm coming and I'm like, 'It doesn't work like that, you have to check it and mail it.'"
As for the bachelor party, Ballas says plans are still up in the air.
"I don't know [what we're doing] yet," he admitted, adding, "Derek [Hough] and I have been talking about it."
"We might do like some sort of Jack and Jill party when Jersey Boys is over, and when Derek's done with Hairspray, because we won't be able to cut loose," he explained. "It'll be more of like a, 'Oh, we gotta go in an hour.' We want to be able cut loose and have the girls there, too. I want BC to be there."
"I think we'll probably do it at the end of January," he continued. "And then [BC and I are] going to be planning the honeymoon, you know, after Jersey Boys too."
Hough, who is set to star as Baltimore TV host Corny Collins in NBC's live adaptation of Hairspray on Dec. 7, echoed Ballas' words, stating that the bachelor party has to be after they wrap their stage projects "because we can't do anything crazy because we got to work and we got to be in great health."
"I want to wake up in like Dubai or something like, 'Where are we?'" he joked.
ET also caught up with Ballas last month at the Lunt-Fontanne Theatre in New York City, where he couldn't stop gushing about wedding planning with his beautiful bride-to-be.
"She's been looking at tablecloths, settings and plates and dishes and the cutlery and what cocktails we're having. She's been Facetiming me in all of it. It's amazing," he said, noting that Jean, 29, is still in Los Angeles, where they were both based before Ballas landed the Broadway gig. "It's coming up really quick, so it's great."
"I try not to get overwhelmed," he added. "I just take each day as it comes and I'm blessed and honored right now."
Blessed, indeed!