18 Celebrities turning 40 in 2018

It’s time to celebrate! These famous faces are hitting a milestone birthday. AJ McLean of the Backstreet Boys will most likely be partying with his boy band friends. Something tells us it will be “Larger than Life.” Yes, we went there! He’s not the only star in the music world to turn 40. American Idol alum Clay Aiken has his big birthday at the end of November. Usher will be celebrating in October. We’re hoping Justin Bieber and girlfriend Selena Gomez make an appearance at his bash. Former Dawson’s Creek co-stars Katie Holmes and Joshua Jackson are also turning the big 4-0! Find out who else will be joining the club.