AARP to Brad Pitt: Happy 50th, Join Up! Organization reminds actor he's now eligible to join its ranks By Evann Gastaldo, Newser Staff Posted Dec 18, 2013 7:27 AM CST 9 comments Comments Brad Pitt arrives at the red carpet at the gala for the new movie "12 Years a Slave" during the 2013 Toronto International Film Festival in Toronto on Friday, Sept. 6, 2013. (AP Photo/The Canadian Press, Nathan Denette) (Newser) – Not many would think of Brad Pitt as a card-carrying member of AARP, but the actor turns 50 today, which makes him eligible to join—and the organization isn't exactly letting him forget it. It put out a mock cover of its magazine featuring a picture of Pitt, People reports, along with the message: "Acclaimed Actor, Producer, Humanitarian, and Family Man, Mr. Pitt Joins the Club." See it here. More senior celebrity birthdays today: Keith Richards is 70 and Steven Spielberg is 67.