https://www.youtube.com/watch?v=OybRti5toSg
T-ara's Jiyeon got her hair yanked in Vietnam.
She flew into Ho Chi Minh City for T-ara's fan meeting at Lan Anh. On her way to the van from the airport, a fan reached out and grabbed her hair for a short while, causing her to cry out. But Jiyeon recovered quickly and moved on into her van.
There were about 2,000 fans that came to greet T-ara at the airport, and it doesn't look like the hair pulling was done on purpose. Jiyeon also didn't panic at the situation and calmly walked on after her initial surprise.