There were 15,000 people in the audience when Marc Benioff got on stage to introduce Bill Clinton. But Clinton's plane was delayed due to bad weather, and Benioff had to improvise. To fill the time, he asked superstar Stevie Wonder to come on stage for a brief interview. After the interview, Benioff asked Stevie Wonder to introduce Bill Clinton. It was a touching moment. Heartfelt improvisation trumps the best-written speech.