K-Pop Persuasion, PSY Invasion: South Korean pop star has the U.S. singing along September 24, 2012 Alex Pytlarz, 24, (back, right), Justin Ignacio, 22, (back, left) and Angie Song, 24, (right) dance to the song, "Gangnam Style" by K-Pop artist PSY at a dance rehearsal in a studio on Market street....
