Using the viral video of the dancing man at the Sasquatch Music Festival in 2009, Derek Sivers explains how movements really get started. Derek Sivers is best known as the founder of CD Baby. A professional musician since 1987, he started CD Baby by accident in 1998 when he was selling his own CD on his website, and friends asked if he could sell theirs, too. CD Baby was the largest seller of independent music on the web, with over $100M in sales for over 150,000 musician clients. In 2008, Sivers sold CD Baby to focus on his new ventures to benefit musicians, including his new company, MuckWork, where teams of efficient assistants help musicians do their "uncreative dirty work."