She's the world's best female golfer, but that doesn't stop her from acting like a teenager. Which she is.
Lydia Ko appears to have had the time of her life at a Psy concert in Korea.
Psy was throwing a year end show called "All night stand" which according to Ko lasted two hours, "and another 1.5hrs of encore!!!"
Psy is best known for his hit Gangnam Style which took the world by storm in 2012.
"Psy is a LEGEND," Ko wrote after the show.