After much speculation from fans about the inspiration behind their newborn son's name, the first-time dad took to Instagram to set the record straight – and the reasoning for the lengthy moniker is sweeter than you might expect.
"We've had lots of questions about the name we choose [sic] for the little peanut so figured I would share a few things..." Kazee began.
The Tony Award winner began by revealing that the pair had chosen the name Callum as it is "Gaelic for dove," sharing that their son "has been so sweet and peaceful since landing in our arms."
Kazee then continued, confirming that he and his son share the same middle name, 'Michael,' and that 'Rebel' was a way of honouring his mother, Reba.
Last September, Dewan took to social media to share the exciting pregnancy news. Along with a photo of her and daughter Everly, Dewan wrote, "Becoming a mother is quite simply the absolute best most incredible thing that has ever happened to me @stevekazee you are a gift from above and i couldn't be more excited to be expanding our family together...!"
Kazee also took to social media to share the exciting news. "Well...the news is out. I can't even begin to describe the feelings that I have had since we first learned that Jenna was pregnant!" Kazee wrote. "I have waited my entire life for this moment and couldn't have found a better person to build a family with."
He continued, "The past year and a half has brought so many things into my life that have filled me with the deepest of gratitude. A partner who radiates love, warmth, and kindness. A partner who has faced some of the hardest moments life can deal you with grace, humility, and a desire to learn from the ups and downs. A partner who is continuously growing from those lessons and who supports my growth as a person with love, unwavering support, and understanding."
"Jenna also brought with her one of the greatest gifts one could ever imagine...her beautiful daughter," Kazee finished. "Evie burst into my life like a supernova and has continued to burn so brightly in it. I have learned so much about parenting already from watching how amazing Jenna is with her and Evie has taught me so much about what it means to love and communicate with a child and I can't wait to give her a sibling and make our little family a little bit bigger."
Congratulations to the new parents!