Mr. Leno is a famous American comedian, television host, actor, writer, and producer. He is best known for hosting 'The Tonight Show Starring JAY Leno' from 1992 to 2009 and again from 2010 to 2014. He has also appeared in several films and television shows. His career began in the 1970s when he started performing stand-up comedy. He has won numerous awards, including an Emmy Award and a People's Choice Award.