Robert 'Bobby Z' Zajonc [Edit] By Sticky Facts Editorial StaffRobert 'Bobby Z' Zajonc biography, ethnicity, religion, interesting facts, favorites, family, updates, childhood facts, information and more:Robert 'Bobby Z' Zajonc date of birth:February 7, 1947How old is Robert 'Bobby Z' Zajonc?79 Tags: birth day 7birth month februarybirth year 1947 Suggested Posts Anna Nicole Smith Facts Justin Timberlake Facts Jim Carrey Facts Kim Kardashian West Facts Rihanna Facts Brad Pitt Facts Madonna Facts Angelina Jolie Facts