Florida Georgia Line's Tyler Hubbard and his wife Hayley learned the sex of their first child on Thursday night (June 8), just one day after revealing that they are expecting a baby. When Baby Hubbard arrives in December, he will be ... well, a he.

The Hubbards hosted a "Dirt Bikes or Diamonds"-themed gender reveal party on Thursday, and when they cut into a multi-tiered cake -- blue on one side, pink on the other -- they revealed a blue center. Family and friends celebrated with the couple; Hubbard and Hayley shared all of the action on Instagram Stories.

Hubbard and his wife have another country couple -- their also-expecting friends Thomas Rhett and his wife Lauren -- to thank, in a way, for their soon-to-be-born baby boy. Hubbard and Hayley were on a safari with Rhett and Lauren in Tanzania when Lauren found out that she was pregnant ... and it made Hubbard and Hayley realize that they wanted to have a child, too.

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“It was the first time that we were actually excited about the possibility of being pregnant,” Hubbard says. “So that instigated the conversation of, ‘Well, maybe we should give this thing a shot and see what happens.’"

Still, the couple has been leaving the timing up to God: "We’ve just been going with it and seeing what happens, and it’s been fun to live in that moment for a little while of, ‘If it happens, great. If it doesn’t, great as well,'" Hubbard says.

Hubbard and Hayley have been married for about two years, since July of 2015. They got engaged on Sept. 22, 2014.

Hubbard and his FGL duo partner Brian Kelley recently opened FGL House, a restaurant and entertainment venue, in Nashville. They are currently out on the road for their Smooth Tour 2017 with special guests Nelly and Chris Lane at all shows, and the Backstreet Boys at select stadium dates.

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