Rapper 2 Chainz initially thought the armed robbery he was caught up in last week (09Jun13) was a staged TV prank. The hip-hop star and his entourage were confronted by armed men on the street in San Francisco, California, last Sunday (09Jun13). Security footage purportedly taken at the scene appears to show the Spend It hitmaker and his crew fleeing in fear. 2 Chainz has now opened up about the terrifying incident, revealing he thought he was being filmed for celebrity practical joke show Punk'd. Speaking to Georgia radio station Hot 107, he explains, "I saw the gun first. It was like a .357 (Magnum handgun). It was so heavy he couldn't really hold it. The gun was so big. That's what made me take off running. When I went into the street, there was another dude with a whole 'nother gun (sic). That's when I knew it wasn't like an episode of Punk'd. I was like, 'This is real...'" The surveillance tape also shows the star apparently falling over as he tries to get away, and he admits he had a close call: "I had bullet fragments in my hair... I think he (the suspect) thought he shot me."