Back in February, Kris Kross joined the rest of the So So Def family for their all-star anniversary concert at the Fox Theatre in Atlanta. Kris Kross were one of the first acts to sign with Jermaine Dupri’s label, so their appearance that night was extra special. They have come a long way from the first time Dupri discovered them in an Atlanta mall in 1991.

After hearing the tragic news of Chris Kelly’s death Wednesday night, Durpi penned a letter to the fans in his honor. It reads:

"To the world Chris was MacDaddy but to me, he was a son I never had, as much as you may think I taught him, he taught me, god has blessed me to be in the presence of so many naturally talented people, and Chris was one. his understanding of what we set out to do, from day one was always on point. his passion for the music, his love for doing shows, his want to better than everyone else, was always turnt up. when I think about it I spent more time with Chris than damn near anybody in my whole life, so you can imagine how bad this hurts.

"I will always love you Chris, and I will never let the world forget you, may god bless your soul"

Here's footage of Kris Kross at the So So Def 20th Anniversary concert, where they perform their classic hit "Jump" and more: