Barack Obama crashes Michelle's book tour; compares himself to famous rapper Jay Z

CNN's Alisyn Camerota says that Michelle Obama is a "superstar" and that her United States book tour is getting a "rock star-like reception" - the video shows former President Barack Obama crashing Michelle's book tour with a bouquet of flowers. It also mentions that Barack compared himself to Jay Z, the rapper who often appears at his wife Beyonce's appearances.

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