Nile Rodgers (left) and Pharrell Williams (right) on stage with Stevie Wonder during a performance of Daft Punk's "Get Lucky" during the 2014 Grammy Awards. Kevork Djansezian/Getty Images hide caption

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Frank Black (right) and Joey Santiago of the Pixies perform at the Coachella Valley Music and Arts Festival in 2004, the year the band reunited after more than a decade apart. Tim Mosenfelder/Getty Images hide caption

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International pop star Demis Roussos hams it up for the camera at the Cannes Film Festival in May 1975. Roussos died in Athens Sunday at age 68. Ralph Gatti/AFP/Getty Images hide caption

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