Jay Leno is a famous talk show host not only known for his 20 year run with his popular show The Tonight Show with Jay Leno, but also for his massive car collection! Jay Leno got his start guest starring in popular television shows in the late 1970s and appearing on the Late Night with David Letterman show a number of times. In the mid 1980s, Letterman became a permanent stand in for Johnny Carson and eventually replaced Carson’s roll.  After retiring from his long running show and having Jimmy Fallon take over as host, Jay Leno now spends his time touring as a stand-up comedian and continues to make guest appearances in late night shows.