Once again, Obama proves himself to be our chillest POTUS ever. Hillary Clinton's presidential campaign has just released some behind-the-scenes footage from last month's Democratic National Convention, and at one point, the President is caught on camera listening to Eminem's "Lose Yourself" before he steps onstage. Seriously, just try to imagine any other president we've ever had doing that. Watch below at around 59 seconds in.
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