The immortal Tom Brady turns 40 years old today.

In honor of the 5x Super Bowl champion's 40th, the New England Patriots invited a bunch of baby goats to training camp, all of which are dressed in Pats gear. In addition to the goat petting zo, the Patriots organization set up a booth where fans can write a message to #12 on a large birthday card.

Brady will enter the 2017 season as the oldest active player (non-kicker) in the league. He has said that he plans to play into his mid-40s, but at the rate he's going it wouldn't be surprising if he's still slinging it when he's 50.

Check out some of the footage from Brady's 40th bday celebration at Pats camp below.