No one can ever say that Frankie Valli & The Four Seasons are back on the road again because, in truth, Valli never stopped performing.

Thursday at Wolf Trap, Valli will perform a trunkful of the doo-wop hits that have defined the group since their inception in 1962. Valli’s tenor falsetto is the hallmark of originality in songs like “Walk Like a Man,” “Big Girls Don’t Cry” and one of the most famous tunes on the planet, “Sherry.”