Broadway Stars Unite for Epic DNC Performance of 'What the World Needs Now'

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Some of the biggest names in Broadway and Hollywood came together at the Democratic National Convention on Wednesday to pay tribute to the victims of gun violence in America in recent years.

Idina Menzel, Kristen Bell, Debra Messing, Audra McDonald, Daren Criss, B.D. Wong, Rosie Perez and Ben Vereen were among a number of celebs who delivered an emotional rendition of "What the World Needs Now."

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The powerful performance came after a stirring speech advocating for gun control from former Arizona congresswoman Gabby Giffords, who survived an assassination attempt after being shot in the head during a public appearance in January 2011.

There were also speeches made by other victims of gun violence, including family members of those killed in the Pulse nightclub shooting in Orlando, Florida last month.

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This year's DNC has seen a number of touching and impassioned speeches from celebrities and politicians alike. Singer Demi Lovato, for example, addressed her struggles with mental illness and addiction, and advocated for reformed and improved mental health services in America. Check out the "Confident" singer's impassioned oration in the video below.

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