John Cena explains new haircut, talks children’s book ‘Elbow Grease’

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Actor and WWE star John Cena sits down with Hoda Kotb and Shaquille O'Neal to talk about his new children’s book, “Elbow Grease,” which he hopes sends a message to never give up. Cena also discusses his new hairstyle, explaining that he’s grown it out for a new movie he’s filming.