Last week was all about partying for September birthday boys T.I. , Young Jeezy and Lil Wayne . The three celebrated their birthdays several days ago at T.I.’s Club Crucial in Atlanta with a joint salute to themselves. On Friday, Wayne hosted his official 25th b-day party in Miami with a Harlem Renaissance-themed yacht party called the “Black and White Baller Bash.” Diddy , T.I., Juelz Santana and Rick Ross were some of the 300 people cruising with Weezy F. Baby.

And on Sunday, Young Jeezy went so fly with his birthday party that he held it in an Atlanta airplane hangar. T.I., Chingy , Jermaine Dupri , Ne-Yo and Yung Joc came out to that bash. … Speaking of one of those partygoers, Juelz Santana is reaching out to the kids by joining the Stay in School Concert set to go down October 17 at New York’s Hammerstein Ballroom.

Jim Jones , DJ Cipha Sounds and Lil Mama are also participating in the event, which is being put on by the Entertainers 4 Education Alliance a nonprofit helping provide at-risk youth with positive alternatives to negative behavior through education. …