'Extra' Shocks the ‘Gangnam’ Out of Psy!
“Extra” welcomed international superstar Psy to The Grove on Monday, September 17. He didn’t know that we planned a covert operation -- a "Gangnam Style" flash mob!
Watch as Maria Menounos, Mario Lopez, Psy and fans took over The Grove!
For the complete "Gangnam" flash mob and interview with Psy, tune-in to “Extra” on Wednesday, September 19th.