Unfinished Business was supported by two singles: ' Big Chips' and 'Don't Let Me Die'. Kelly responded by suing his co-act and touring company for $75 million for breach of contract, among other things, on November 2.

Kelly from the tour claiming 'lack of professionalism'. Jay-Z and the tour promoter then banned R. Kelly was accused of erratic behavior and was pepper sprayed by a Jay-Z associate. Kelly and Jay-Z performing songs from both their solo and joint albums.The 'Best of Both Worlds' tour filled with tension and accusations that boiled over at an October 31 show where R. The album was promoted by the 'Best of Both Worlds' concert tour with R. The album was composed of unreleased tracks from the recording sessions of 2002's The Best of Both Worlds. It was distributed in the United States and Canada by Jive Records and Island Def Jam Music Group, by the Bertelsmann Music Group (BMG) and its subsidiary Jive Records, except in Canada and the United States of America where Island Def Jam Music Group and its labels Def Jam Recordings and Roc-A-Fella Records replaced BMG. The album was released worldwide on October 26, 2004. Unfinished Business is the second and final collaboration album between American rapper Jay-Z and singer R.

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