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Murgatroyd and her husband Maksim Chmerkovskiy announced the arrival of baby Rio in June. In their post, they revealed he was born on June 18 and weighed 8 pounds, 6 ounces at birth.

They also shared that their older son, 6-year-old Shai, \"is already the best big brother,\" and their family feels \"very complete.\"

Murgatroyd, a two-time Mirrorball champion, will compete with her partner Barry Williams in the upcoming season of \"Dancing with the Stars.\"

Check out some of the behind-the-scenes footage from rehearsals leading up to the Sept. 28 premiere, which will simulcast on ABC and Disney+, here.

Photos: See the 'Dancing with the Stars' season 32 celebrity and pro pairs!

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