"As some of you heard, the state of Hawaii released my official, long-form birth certificate," the president joked. "Hopefully this puts all doubts to rest, but just in case there are any lingering questions tonight, I'm prepared to go a step further."
The comedic remarks were followed by a clip of what turned out to be footage from Disney's The Lion King.
After the video was played for the president's audience, Obama took a swipe at Fox News. "I want to make it clear to the Fox News table," he said, "that was a joke, that was not my birth video, that was a children's cartoon."