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R.I.P. Chris "Mac Daddy" Kelly  - Who could forget the teen rap duo Kriss Kross? They burst on the seen in 1992 with the hit "Jump" and created a phenomenon wearing their clothes backwards. Today, we learned that sadly one-half of the duo, Chris "Mac Daddy" Kelly, was found dead in his apartment of an apparent drug overdose. Many stars reacted to the tragic news throughout Twitter with great sadness and shock.   (Photo: Catherine McGann/Getty Images)

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Jermaine Dupri @Mr_Dupri - Jermaine Dupri, the hip hop super producer who discovered Kriss Kross tweeted this statement today:"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."(Photo: Scope Australia, PacificCoastNews.com)

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Russell Simmons @UncleRush - Tweet: "RIP Chris Kelly from Kriss Kross… http://bit.ly/ZXEP3L  (Photo: Darla Khazei, PacificCoastNews.com)

Photo By Photo: Darla Khazei

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Big Boi @BigBoi - Tweet: "R.I.P. Chris Kelly #KrissKross" (Photo: Stephen Lovekin/Getty Images for Bud Light)

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Nicki Minaj @NickiMinaj - Tweet: "So sorry to hear that. Sending love to his family. RIP Chris" (Photo by Mike Coppola/Getty Images)

Photo By Photo by Mike Coppola/Getty Images

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Noreaga @Noreaga - Tweet: "R.i.p the homey from Chris cross Chris Kelly rest In peace!!!!!!" (Photo: Jason Kempin/Getty Images)

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D-Nice @djdnice - Tweet: "The news of Chris Kelly's death has me feeling numb. I didn't know him but I appreciated Kris Kross' contribution to HipHop." (Photo: Dimitrios Kambouris/Getty Images for Marc Jacobs)

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Ludacris @Ludacris - Tweet: "One of my motivations as a kid to even get into the rap game. You will be missed. R.I.P. Chris Kelly http://instagram.com/p/YyzP2ZQazu/ (Photo: Alberto E. Rodriguez/Getty Images)

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Monica @MonicaBrown - Tweet: "RIP Chris Kelly May the peace of God comfort your family & all of those who love u... http://instagram.com/p/Yyuc0rTaXB/ "(Photo: Frazer Harrison/Getty Images for ABC)

Photo By Photo: Frazer Harrison/Getty Images for ABC

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Musiq Soulchild @MusiqSoulchild - Tweet: "rest in peace Chris "Mack Daddy" Kelly... god bless you brother!!! #chriskelly #mackdaddy #krisskross… http://instagram.com/p/YyxoFEv3i4/  "(Photo: Brad Barket/PictureGroup)

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LL Cool J @llcoolj - Tweet: "R.I.P Chris Kelly. This song is now officially dedicated to you. May GOD embrace your soul & lift up your family"  (Photo: Mark Davis/Getty Images for NAACP Image Awards)

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Timbaland @Timbaland - Tweet: "rip2 chris kelly." (Photo: Darla Khazei, Pacificcoastnews.com)

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Keri Hilson @KeriHilson - Tweet: "Rest In Peace, Chris Kelly. Kris Kross lives forever. Thank you for the memories. #AtlantasOwn" (Photo: Michael Buckner/Getty Images)

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Q-Tip @QtipTheAbstract - Tweet: "RIP Chris Kelly. Very sad"  (Photo: Frazer Harrison/Getty Images for John Varvatos)

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MC Hammer @MCHammer - #RIPChrisKelly My sincere Prayers for your Family,Fans and Loved Ones. #ATL (Photo: Paul Zimmerman/Getty Images for TechCrunch/AOL)

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T-Boz @TheRealTBOZ - Tweet: "RIP #ChrisKelly #KrissKross God Bless his family at this time. I started singing my demos for them.…" (Photo: Samir Hussein/Getty Images)

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Rah Digga @therealrahdigga - Tweet: "Awww damn... #RIP Chris Kelly"  (Photo: Robert Pitts /Landov)

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Redman @therealredman - Tweet: "WTF MAN !!! R.I.P. Chris Kelly !!! AWWWW MANNN !!! My Condolences to the family !!!! WE WORKD IN THE 90'S...VERY TALENTED YALL !!" (Photo: Johnny Nunez/WireImage)

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9th Wonder @9thWonderMusic - Tweet: "Rest In Peace Chris Kelly........#KrisKross" (Photo: Henry S. Dziekan III / Retna Ltd.)

Photo By Henry S. Dziekan III / Retna Ltd.

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DJ Drama @DJDRAMA - Tweet: "R.I.P. Chris "Mack Daddy" Kelly... #KrissKross. Sad news..."  (Photo: Chris McKay/Getty Images for BET)

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2 Chainz @2chainz - Tweet: "jus heard one of the krisskross died they from the atl shawty,, which one was it? Dam man life is short"(Photo: Jason Kempin/Getty Images)

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Da Brat @ONLY1BRAT - Tweet: "THEY R WHY I'M ME. Kris Kross RIP Chris. http://instagram.com/p/YyzzGdq5AJ/ (Photo: Stephen Shugerman/Getty Images)

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Lil Kim @LilKim - Tweet: "I'm so sad to hear the news of Chris Kelly. What a great loss. RIP Mac Daddy."  (Photo: Ivan Nikolov/WENN.com)

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Diddy @iamdiddy - Tweet: "RIP Chris Kelly" (Photo: Jason Merritt/Getty Images for Aquahydrate)

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Marlon Wayans @MARLONWAYANS - Tweet: "Damn RIP Chris Kelly... Make 'em "jump jump" in heaven bro." (Photo: Valerie Macon/Getty Images)

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Lance Gross @LanceGross - Tweet: "Damn...RIP Chris Kelly...Thank God for each day...Tomorrow is never promised #jump" (Photo: Jemal Countess/Getty Images)

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Meagan Good @MeaganGood - Tweet: "Was a huge KrissKross fan.If you remember the N'Sync craze?That's how I was bout the Chris's.My room was COVER'D in posters RIP #ChrisKelly" (Photo: Cindy Ord/Getty Images)

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Mike Epps @TheRealMikeEpps - Tweet: "RIP to #ChrisKelly from the hip hop group #KrissKross. Young brothers made you #Jump-Jump" (Photo: Alberto E. Rodriguez/Getty Images)

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Phaedra Parks @PhaedraParks - Tweet: "RIP Chris Kelly 👼 😢 http://instagram.com/p/Yy7xqcKwjD/  " (Photo: Taylor Hill/Getty Images)

Photo By Photo: Taylor Hill/Getty Images

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Rocsi Diaz @rocsidiaz - Tweet: ""Jump" was the first cassette single I ever bought I use to love hearing and trying to rap like Kris Kross. #RIP Chris Kelly" (Photo: Jason Merritt/Getty Images)