Most musicians pick one style and stick with it. Herbie Hancock refused. Born on April 12, 1940, in Chicago, Hancock started playing piano at age seven. By eleven, he performed Mozart with the Chicago Symphony Orchestra. He could have become a classical pianist, but jazz captivated him instead. In the 1960s, Hancock joined trumpeter Miles Davis's band, one of the most famous groups in jazz history. Together, they pushed jazz in new directions, mixing it with rock and funk. But Hancock was not finished experimenting. In the early 1970s, he began using electronic synthesizers -- keyboards that could create sounds no acoustic piano could make. He layered electronic beats, funky bass lines, and jazz improvisation into something entirely new. His 1983 hit "Rockit" shocked the music world. It combined jazz, electronic music, and hip-hop turntable scratching. The song's music video, featuring dancing robots, became one of the most iconic videos of the decade. It won a Grammy Award. What makes Hancock remarkable is his refusal to stop changing. From classical to jazz, jazz to funk, funk to electronic, electronic to hip-hop. He has reinvented himself across six decades. He has won fourteen Grammy Awards, including Album of the Year in 2008. He proves that the greatest musicians are not those who master one style but those who never stop exploring.