Singer Beyonce and rapper Jay Z perform onstage during the 56th GRAMMY Awards at Staples Center on January 26, 2014 in Los Angeles, California.
(January 25, 2014 - Source: Kevork Djansezian/Getty Images North Americavia )
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Some celebrity couples just can't get enough of each other. They not only spend their free time together, but also collaborate at the "office." Here's the famous duos who love mixing business and pleasure.