music: 50 Easy: Hit for Geneisis which includes an exclamation point in the title?

Questions

Musical W: Occasional actor, & auteur of Nighthawks at the Diner & Big Time ?

Musical W: One of the two most important members of Steely Dan?

Musical W: Please come to ______ ___ ___ ______ (ramblin boy)?

Musical W: The Moody Blues whiny hit ("...never reaching the end...")?

Musical W: This jazz alto player married Charlie Parker's widow ?