More than 150 stars went to watch the concert of Korea’s international star, Psy!

On April 13th, Psy’s solo concert ‘HAPPENING’ was held at World Cup stadium in Sangam-dong, Seoul. In addition to the 50,000 screaming fans, several celebrities also attended the concert to show their support for the world star.

Stars including world star Lee Byung Hun, Kim Soo Hyun, Song Joong Ki, Yoo In Na, Choi Ji Woo, Lee Yo Won, Kim Gang Woo, Kim Seong Soo, Lim Soo Jeong, and more went to the concert hall to watch Psy’s concert. Ga In, who appeared on the music video of new song “Gentleman”, enjoyed the stage as well.

KARA’s Goo Hara and Nicole also attended the concert and they provided a proof-shot through Goo Hara’s Twitter saying, “Everybody became one at Psy's concert~ I don’t know if those who did not come would feel it~”

Meanwhile, Psy revealed his new single “Gentleman” in 119 countries on April 12th and as it was unveiled, it dominated the whole music charts in Korea. The music video of the song was also revealed on April 13th 9 pm, and it is already writing a record in YouTube.