This particular image made the list because it represented the advent of the celebrity paparazzi era. "One of the original freewheeling celebrity shooters, Galella created the model for today’s paparazzi with a follow-and-ambush style," Time explains.
The magazine explained how Galella managed to get the golden shot. "It was Galella’s relentless fixation that led him to hop in a taxi and trail Onassis after he spotted her on New York City’s Upper East Side in October 1971. The driver honked his horn, and Galella clicked his shutter just as Onassis turned to look in his direction. 'I don’t think she knew it was me,' he recalled. 'That’s why she smiled a little.'"
Watch the video below to see the now-iconic Jackie Kennedy image and listen to photographer explain its significance.
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