Crossword clues for A "Tonight Show" host 4 lettersAnswerCluePAAROnetime host of "The Morning Show" and "The Tonight Show"PAARFormer "Tonight Show" host JackPAAREarly "Tonight Show" host JackPAARTonight Show host before CarsonPAARSecond "Tonight Show" hostPAARThe Tonight Show host, oncePAARThe Tonight Show host who once walked off the setPAAREarly "The Tonight Show" host JackPAARFormer "Tonight Show" hostLENOLongtime "Tonight Show" host JayLENOThe Tonight Show hostLENOFormer "Tonight Show" hostLENOTonight Show host before FallonPAARThe Tonight Show host: 1957-62PAARA "Tonight Show" hostPAARTonight show host of yoreLENOTonight show host todayLENOThe Tonight Show host before and after O'BrienLENOTonight Show host who left and returnedLENOTonight Show host JayLENOTonight Show host after CarsonLENOFormer "Tonight Show" host JayPAARThe Tonight Show host decades before LenoPAARTonight Show host from 1957 to 1962LENOTonight Show hostPAAREarly "Tonight Show" hostPAARHe finished hosting "The Tonight Show" 12 years before Fallon was bornPAARJack who once hosted "The Tonight Show"PAARJack who hosted "The Tonight Show"LENOJay who hosted "The Tonight Show"LENOJay who hosted the "Tonight Show" before Jimmy FallonLENOHost of "The Tonight Show"PAARCarson's predecessor as host of the "Tonight Show"LENO1990s-2000s host of "The Tonight Show"PAAROriginal host of "The Tonight Show"PAAREarly host of "The Tonight Show"PAAROne-time host of "The Tonight Show"LENOTwo-time host of "The Tonight Show"LENOHost on one side of the 2010 "Tonight Show" conflictKATIEIn an arranged swap, she guest-hosted "The Tonight Show" in 2003 on the same day Jay guest-hosted "The Today Show"ALLENEarly "Tonight Show" hostSTEVEALLENFirst "Tonight Show" hostTVSTARAny "Tonight Show" hostJOHNNYCOMELATELYTonight Show host in 1962?ALLENTonight Show host, onceBELLOWPAARHoller so as to get the attention of a former "Tonight Show" host?STEVEWith 15-Across, 1950's "Tonight Show" hostJOHNNYCARSONFormer "Tonight Show" hostSTEVETonight Show host before Jack, Johnny, and JayJAYLENOThe Tonight Show host before and after Conan O'Brien