Who runs the world? Girls! Chime for Change's The Sound of Change Live concert in London aired last night, and in addition to the showstopping performances by Beyoncé, Jennifer Lopez, and Mary J. Blige, the event also raised a cool $4.3 million in ticket sales. The proceeds will benefit 200 of Chime for Change's projects to advance the lives of women and girls in over 70 countries, and host Gucci even allowed attendees to donate the value of their ticket to non-profit organizations of their choice. Salma Hayek, Gucci's Frida Giannini, Zoe Saldana, and Blake Lively also attended, and were treated to a surprise duet performed by Bey and Jay-Z. Change never sounded so sweet! Click to take an inside look at the event, and head over to chimeforchange.org to see how you can support the cause.