This was definitely one of the highlights of Summer Jam 2009. Just the day after releasing “Death Of Autotune,” Hov shut down the show when he made a guest appearance during Young Jeezy’s set and the song rang off in the stadium with almost everyone in the crowd was signing along. Even T-Pain, the king of Autotune, joined Jay on stage during the song even though Jay had not one clue, at the time, who he was or what he was doing. Watch below and watch what happens at Summer Jam 2012 here.

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