Shelley in a promo pic from the 1980s
Shelley played Billie Dawn in Pennsylvania Stage Company's 1982 staging of Born Yesterday in Allentown, Pennsylvania. After her other stage triumph in Vanities and and her critically-acclaimed performance in Martin Scorsese's The King of Comedy, Shelley tackled stage once again. "Billie Dawn is a complex character who grows through the play," Shelley said, "and that's a challenge for any actor." Shelley added, "Every actor likes to do a variety of things - television, movies, stage. I like the theater because you have the live audience." The play ran from September 29 to October 24 of 1982. Michael O. Smith and Fritz Sperberg were Shelley's co-stars. As for Shelley's performance in the play - she received glowing reviews.
a writeup about Shelley from 1982