The Backstreet Boys star was booked to appear at the Walker Stalker Con on Friday (28Oct16) and Saturday (29Oct16) to meet fans of his Dead 7 zombie TV movie, but he has had to scrap the trip.

"I apologize to all the fans that would have attended the @WalkrStalkrCon in Atlanta," he wrote on Twitter on Thursday (27Oct16). "Don't worry, Everything is ok (sic). Just need to be home."

Carter and his wife, Lauren, welcomed their first child, son Odin Reign, in April (16).

He co-wrote and co-starred in Dead 7, which premiered on America's SyFy Channel weeks before his kid's birth.

The western-themed film, directed by Danny Roew, also featured his Backstreet bandmates A.J. MCLean and Howie Dorough and NSYNC's Joey Fatone as gunslingers.