A pair of Broadway vets, Kurt Peterson and Victoria Mallory, will appear together in a benefit concert staged by Larry Moss and choreographed by Joshua Bergasse, the hoofer who provides the dance steps on upcoming NBC skein “Smash.”

A benefit for Broadway Cares/Equity Fights AIDS, the evening, “When Everything Was Possible: A Concert (with Comments),” recounts the pair’s time on the boards between 1968 and 1974, just as the golden age of the musical was on its way out. Mallory and Peterson played Maria and Tony together in the 1968 Lincoln Center revival of “West Side Story,” and the pair also were in the original cast of “Follies.”

Intro for the night will be provided by Theodore S. Chapin, the chair of the American Theater Wing and the author of backstage book “Everything was Possible: The Birth of the Musical ‘Follies.’ ”

Longtime Broadway music maven Jonathan Tunick will provide new orchestrations of the tunes to be sung by the pair and played by a 13-piece band.

James William Prods. and Stephenie Skyllas present the concert, set for April 29 at City Center.