Katharine McPhee, Jennifer Hudson & More Celebrities at Super Bowl XLVII (PHOTOS)

Jennifer Hudson sang with kids from Sandy Hook. Michael Phelps wondered why the lights went out. Katharine McPhee stalked the sidelines. Plus, more stars who took in the big game in the Big Easy.

Christopher Polk/Getty Images; bottom left: Gerald Herbert/AP

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Christopher Polk/Getty Images

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Mark Humphrey/AP

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Harry How/Getty

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Mark Cornelison/Lexington Herald-Leader/MCT, via Getty

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Marcio Sanchez/AP

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Christopher Polk/Getty Images

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Christopher Polk/Getty Images

Katharine McPhee, Jennifer Hudson & More Celebrities at Super Bowl XLVII (PHOTOS)

Jennifer Hudson, Michael Phelps, Katharine McPhee, and more stars who took in the big game in the Big Easy.