Watch Full Movie Online. The Sound of Change was a benefit concert held at Twickenham Stadium in London, England, as part of the Chime for Change initiative, founded by Beyoncé with the help of actress Salma Hayek and Gucci creative director Frida Giannini. The concert features live performances by Mary J. Blige, Jennifer Lopez, Beyoncé, Ellie Goulding and others.