Singer Christina Aguilera and "Tonight Show" host Jimmy Fallon perform in disguises for a crowd in a New York subway station.

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Take a look at 22 photos of the week from June 7 through June 14.

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Is this the year's scariest movie?

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How many people does it take to build an atomic bomb? About 125,000, if you count the inhabitants of three entire US cities that were built from scratch in 1943 as part of the Manhattan Project.

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Singer-songwriter and adoptive father of six children Michael Ketterer earned a "golden buzzer" from Simon Cowell on "America's Got Talent."

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