Kelly was pronounced dead at the Atlanta Medical Center in Georgia after he was found unresponsive at his home in the city.
LL Cool J was stunned to learn of the 34 year old's passing and has decided his latest track, Jump On It, will be a tribute to Kelly.
After posting a link to an audio stream of the song on Twitter.com, he added, "R.I.P Chris Kelly. This song is now officially dedicated to you. May God embrace your soul & lift up your family."
Ludacris also took to his page on the microblogging site and tweeted, "One of my motivations as a kid to even get into the rap game. You will be missed. R.I.P. Chris Kelly."
Nicki Minaj added, "So sorry to hear that. Sending love to his family. RIP Chris", while Samuel L. Jackson offered, "How unfortunate. Waaay (sic) too young. My sympathy to all his people."
R&B singer Monica lamented, "Chris Kelly, may the peace of God comfort your family & all of those who love u (sic)."
Stars including Sean 'Diddy' Combs, Russell Simmons and Alyssa Milano have also paid tribute to Kelly on Twitter.