The 76ers are apparently big on celebrating birthdays. In the clip above, you can see a bunch of Sixers players singing "Happy Birthday" to Allen Iverson back in the day. And even though AI isn't taking the court for the Sixers anymore, the team continues to find ways to celebrate players' birthdays. Just take a look at how they celebrated Michael Carter-Williams' 23rd birthday earlier today:

Yes, MCW did ask all of the rookies to hold hands and sing to him. And yes, it did look like he really enjoyed it. Ha. Happy birthday, old man.

[via @Sixers]