In March 1974, Giannoulas was hired to wear the first chicken suit; at the time he was a 20-year-old journalism major at San Diego State University. He was originally from Canada but had attended Hoover High School in San Diego. The Chicken's first appearance was a KGB promotion to distribute Easter eggs to children at the San Diego Zoo. After his first appearance, Giannoulas, a lifetime baseball fan, approached the San Diego Padres front office. “I’ll bet I could get into games free in this get up,” he thought. He was allowed to wander throughout the stands at Padres games, and if someone said "lay one on me," The Chicken would "lay" an egg containing a prize via his leggings. He soon took to the field and, he recalled, “discovered a side of my personality I did not know existed, almost a Jekyll and Hyde thing.” Once on the field, he demonstrated a remarkable ability to mime, joke with players and umpires, and connect with fans. Padres’ attendance, which had been the lowest in the league, doubled that summer.