Rebel with a cause

Hattie Garlick writes: To twist the lyrics of his latest supporter: Barak Obama may have 99 problems, but annexing the talents of celebrities to prove he's down with the kids ain't one of them. Swift on the heels of pop band Arcade Fire's endorsement, comes an informational 'robocall' recorded by rapper Jay-Z as part of Obama's campaign to appeal to younger voters. In a recorded message, Jay-Z greets Ohian householders and then, seemingly not au fait with the voting process himself, haltingly lists the identification requirements and poll opening times. Yet another rebel has clearly found a cause.