Gregg's 60th Birthday (1983 Prom)

Marcella Hymowitz hosted an over-the-top '80s prom-themed 60th birthday party for her husband, Gregg, at ZZ's Club in Hudson Yards. The event featured a DeLorean, live entertainment by Nile Rodgers, a Michael Jackson impersonator, and DJs Sebastian Ingrosso, Mark Ronson, and Chachi.