At the 2009 Sasquatch Music Festival in Washington State, a man began dancing in an erratic fashion to the song “Unstoppable” by Santigold. His unique, energetic style attracted the attention of another concertgoer, who started moving in sync. Soon others joined in the dancing, until a large crowd was participating. In this brief but dynamic TED Talk, entrepreneur and musician Derek Sivers cleverly uses footage of this event as an illustration of “how to start a movement,” emphasizing the crucial role of the first followers. getAbstract recommends this brief presentation as an unconventional lesson in leadership.