On April 23, 1977 Tom Petty and the Heartbreakers performed a live set at the Record Plant in Sausalito, CA broadcast by WXRT-FM. The band opened with two songs many fans still don't know: "Surrender" and the Chuck Berry cover "Jaguar and Thunderbird". Al Kooper would join them later in the show to add keyboards to "Listen To Her Heart", "I Need to Know" and a few others.
Tom Petty and the Heartbreakers were working hard to get their debut record played in the U.S. To little effect. In the summer the band would storm the U.K., gracing the cover of music magazines and appearing on TV shows. Suddenly TP and the Heartbreakers would be a happening band.