Celebrities Who Stand Up for a Cause

"Justice for Trayvon Martin" is the rallying cry heard across the nation following the George Zimmerman verdict. Beyonce and Jay-Z are the latest stars to get behind the Martin family's plea for justice. The couple joins a long list of celebrities who've used their platform to amplify a message and stand up for what they believe in. From Stevie Wonder to Jamie Foxx and Alicia Keys, take a look at the celebrities using their status to call for change, beyond entertainment.

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