Zac Brown Band’s Clay Cook will soon be adding a new member to his family. The multi-instrumentalist posted a photo of his wife Brooke looking gorgeous while showing off a growing baby bump.

Cook is clearly overjoyed by the news, as his caption includes all-caps and several exclamation points. He also brags on his baby mama, noting she’s “going to be the best Mommy,” and that he’s “so damn lucky in this." Cook did not share when his baby is due.

Zac Brown Band recently released their fourth single from their record Jekyll + Hyde, “Castaway,” a reggae-infused beachy tune consistent with the group’s island-loving lifestyle. It’s a testament to their vocal and instrumental talent, as well as their ability to hone in on catchy melodies perfect for the summertime. ZBB have already earned three No. 1s with their singles “Homegrown,” “Loving You Easy,” and “Beautiful Drug” from the record, which melds a variety of styles, including rock, jazz and electronic pop, hence its dual-personality.

The group will kick off their 6th headlining tour, called the Black Out the Sun Tour, with Drake White and the Big Fire on May 19. They hit Country Jam as a headliner June 16-19 in Colorado, where they'll close out the festival June 19 with Trace Adkins, Canaan Smith, Aaron Watson and Lindsay Ell. For more info on the festival or to get tickets, visit the event site.

Zac Brown Band recently hosted their annual Southern Ground festival in Charleston, S.C., which not only featured the band themselves, but Hunter Hayes, Thomas Rhett and Old Dominion, among many others.

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