Here is a short preview of Young Justice. Jesse voices Robin, Batman's sidekick! There's also an interview with Jesse
http://whosnews.usaweekend.com/2010/11/jesse-mccartney-a-boy-wonder-of-pop-and-as-robin-in-%E2%80%98young-justice%E2%80%99/
http://whosnews.usaweekend.com/2010/11/jesse-mccartney-a-boy-wonder-of-pop-and-as-robin-in-%E2%80%98young-justice%E2%80%99/