R. Kelly is hooking up with Kanye West for his next album, the Chicago singer revealed in a bizarre six-minute phone message accessible by calling (312)278-3965 (that’s a Chicago area code, by the way). Perhaps taking a tip from the Arcade Fire — who debuted a new song via a mysterious toll-free phone number earlier this year — the singer plays snippets from and spills more details about his next effort, which, according to the message, will be called Double Up. In the rambling message, Kelly also previews “Blow It Up” (featuring Young Jeezy and Young Dro), “Rock Star” (featuring Ludacris), “Freakin’ in the Clubs” and “Hook It Up” (featuring Kanye West). …

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