March 01, 2011 12:45 PM

Ian Gavan/Getty

Kings of Leon will soon welcome a new prince — or princess — into the band.

Guitarist Matthew Followill, 25, and wife Johanna Bennett are expecting their first child, a rep for the band confirms to PEOPLE.

The baby, reportedly due this spring, will arrive around the time Kings of Leon head back out on the road in support of their latest album, Come Around Sundown.

Followill and Bennett, 26, are the first couple to announce they have a child on the way — although other members have begun to settle down.

Drummer Nathan Followill wed singer Jessie Baylin in Nov. 2009, while frontman Caleb Followill popped the question to model Lily Aldridge in Sept. 2010.

— Sarah Michaud with reporting by Rennie Dyball

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