Crossword clues for Jay who hosted "The Tonight Show":KATIEIn an arranged swap, she guest-hosted "The Tonight Show" in 2003 on the same day Jay guest-hosted "The Today Show"LENOTonight Show host JayLENOLongtime "Tonight Show" host JayLENOFormer "Tonight Show" host JayKATIECOURICOnly person to guest-host "The Tonight Show With Jay Leno"LENOJay who hosted "The Tonight Show"LENOJay who hosted the "Tonight Show" before Jimmy FallonSTEVETonight Show host before Jack, Johnny, and Jay