Backstage with Jay-Z, Usher, Jermaine Dupri, Mariah Carey & More at So So Def 20th Anniversary (VIDEO)

Jermaine Dupri's So So Def celebrated 20 years with a star-studded anniversary concert held in Atlanta over the weekend. In addition to So So Def acts like Jagged Edge, Bow Wow, Da Brat and Kris Kross, the concert brought out Dupri's pals Jay-Z, Mariah Carey, Nelly, Lil Jon, Ludacris, Young Jeezy and Usher who all took to the stage.

“I’ve made more hits with this man than anyone else,” said Usher, before performing with a JD, Luda and Lil Jon. Check out highlights from the stage and backstage.