On April 25, 2011, Invisible Children hosted 25. Participants were asked to raise $25, and then asked to remain silent from 7 p.m. April 24 to 8 p.m. April 25. Invisible Children coordinated concerts at various locations across the U.S. after the 25 hours of silence were over. These concerts were called "Break the Silence" concerts, and featured artists such as the Plain White T's and Mumford and Sons. less