Super Bowl 2017: Usher, Samuel L. Jackson, Chrissy Teigen and more take to social media

Usher poses for photos before the NFL Super Bowl 51 football game between the New England Patriots and the Atlanta Falcons, Sunday, Feb. 5, 2017, in Houston. (AP Photo/Jae C. Hong)

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Usher poses for photos before the NFL Super Bowl 51 football game between the New England Patriots and the Atlanta Falcons, Sunday, Feb. 5, 2017, in Houston. (AP Photo/Jae C. Hong)