Earlier this month, the Maroon 5 frontman took to Instagram to show support for his wife, revealing that much like Shelton, he also has a baby belly. Levine and Behati both posed shirtless, baring their stomachs. "Week 20 and I'm finally popping! #impregnanttoo," he captioned the sweet pic.
The bromance between Levine and Shelton is clearly going strong -- and so are the brotherly jabs! Last month, the 39-year-old country crooner joked to ET that he is "looking forward to Adam actually having to wake up before noon or one o'clock for the first time in his life, you know, to go change a diaper."
Watch the video below to find out what Levine had to say about impending fatherhood during that same interview.