The electric guitar was born out of necessity: during the Big Band era, acoustic guitars were too quiet to be heard over brass and drum sections. George Beauchamp and Adolph Rickenbacker created the first successful electromagnetic pickup, which converted string vibrations into electrical signals. Their first prototype was a lap steel guitar nicknamed 'The Frying Pan' because of its circular body and long neck. In 1950, Leo Fender introduced the first mass-produced solid-body electric guitar, the Broadcaster (later renamed the Telecaster). Shortly after, Gibson released the Les Paul. Solid-body guitars solved the problem of 'feedback' that occurred when hollow-body guitars were amplified at high volumes. This invention fundamentally changed music, allowing for the high-volume distortion that fueled Rock and Roll, Blues, and Jazz. It turned the guitar from a rhythm instrument into a dominant soloing voice.