Jay Leno is an American television host, comedian, and writer. After doing stand-up comedy for years, Leno was chosen in 1992 to replace Johnny Carson as the host of NBC's The Tonight Show; Leno hosted The Tonight Show until September 2009. Jay Leno has Hand Signed this Autographed Rawlings Adirondack (Blue Ring) Personal Model (Engraved Name), 34" Baseball Bat. Full blue signature with Art, as shown. Beckett Authentication Services Signature Review Order ID : 97755, Order Item ID #117887.