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Fraser-Pryce was the first 100m sprinter to win individual medals in four consecutive Olympic Games.
The 35-year-old, who claimed a fifth world 100m title on Sunday, raised her right arm to fix the hairpiece and kept on running, crossing the line in 22.26 in second place.
Fraser-Pryce now has five 100m world titles and two Olympic 100m golds and at 35 shows absolutely no signs of slowing down as Sunday's time was the fastest winning time of all those seven global victories.
American Florence Griffith-Joyner is the only woman to have clocked a faster time over the distance.
The 32-year-old, who has four world 100m titles to her name, did not compete in the 200 at the 2016 Rio Olympics to focus on the shorter event in which she finished third despite a toe injury.
The 32-year-old Jamaican clipped two-hundredths of a second off American Evelyn Ashford's Games 200m record of 22.45 set at San Juan, Puerto Rico, in 1979.