NEW YORK - AUGUST 23: Singer Mariah Carey performs with rapper Jay Z at Madison Square Garden on August 23, 2006 in New York
Scott Gries

Jermaine Dupri threw a concert Saturday night at Atlanta's Fox Theater to celebrate the 20th birthday of his label So So Def Recordings, and a few surprise guests dropped by, including Jay-Z and Mariah Carey.

"This feels like a mother-f--king family reunion," Lil Jon, who served as the night's DJ, said to the audience, Billboard reports.

It certainly was. Jay-Z, Mariah Carey, Usher, Nelly, Kris Kross, Da Brat Xscape, Jagged Edge, Bow Wow, and more all performed to support the producer’s label and incredible career.

"I do more than run So So Def," Dupri said to concertgoers. "I've produced so many hits for people outside of So So Def."

Watch performance footage below.