Greg was born in Manhattan and raised on Long Island in Massapequa Park, where he did not know Jerry Seinfeld, the Baldwin Brothers or Joey Buttafuoco. A classically-trained singer (NYU, Mannes College of Music) who enjoys success in many genres, he defines the word “crossover."
   Working with his long-time musical director, David Cook, he has created several well-received cabaret shows at clubs in New York, including Something in Your Smile at The Hideaway Room At Helen's and Where's The Fire? at The Encore. As a cast member of Rendezvous- An Evening With Piaf, Brel, Aznavour and Friends, (2008 MAC Nominee) he has appeared at Feinstein's at Loews Regency, Metropolitan Room and the Reprise Room at Dillon's. His newest show, Babalu-cy! - The Art of Desi Arnaz wowed audiences and critics alike when it debuted at Metropolitan Room in July 2007, winning a 2008 Back Stage Bistro Award for Best Theme Show.
   Greg has toured extensively in the US, Europe, the Far East, Australia and Russia, often in the course of creating roles for such avant-garde luminaries as Philip Glass, Mary Zimmerman, Robert Wilson, Meredith Monk and John Kelly; appeared in several Off-off Broadway shows and performed at benefits for the Cystic Fibrosis Foundation, Habitat for Humanity, as well as nursing home outreach programs with Vocal Ease.
   During the 90's, he was a BMG recording artist as a member of the a cappella quartet Toby Twining Music. His diverse catalogue of commercial recordings include many of the Glass works he has premiered; Avant-Garde Opera, Early Music, New Music and several Original Cast Albums. He is especially proud to have been a guest vocalist on Bjork's CD, Medulla