AceShowbiz -

Rapper Nelly immediately halted his several Sweat/Suit Tours in Texas following the death of his half-sister, Jacqueline "Jackie" Donahue, in Thursday to complications from leukemia. The 31 years old female, who in June 2003 launched the "Jes Us 4 Jackie" campaign to solicit potential donors, has been diagnosed with the disease in 2001 and is survived for almost two years, time when she used to be Nelly hairstylist until she became too ill. Though never found a match for Donahue, the organization did enlist hundreds for the National Donor Registry.

Soon after hearing his sister death, Nelly flew back to St. Louis to be with his family. Details on the funeral have not yet been settled. A statement released on behalf of Nelly and his family said they were "deeply saddened" by Donahue's death, but they also thanked all those who responded to Nelly's call to action.