Among the many big names who will be taking to the stage this evening at the Seoul World Cup Stadium for the 2010 Dream Concert, 2AM will not be there. This is because 2AM will be guest performers for Park Jin Young at his JYP Tour concert at the Roseland Ballroom on the 21st. And to keep fans in the loop, Jo Kwon has updated his Twitter with two photos as he toured the streets of New York after his arrival to take in the sights.