Beyoncé, Blake, JLo, and More Bring Star Power to Chime For Change

Beyoncé Knowles donned a black leather leotard to rock the stage at today's Chime For Change benefit concert at Twickenham Stadium in London. She also posed for pictures with Salma Hayek, who serves on the committee, as well as Gucci's creative director Frida Giannini backstage at the star-studded festivities as well. Beyoncé is headlining the concert, which promotes education, health, and justice for girls and women world-wide, and she was joined by many other famous faces to support the caus...