K-Pop's rapid spread to the U.S. has suddenly stopped.

The '2012 SBS K-Pop Festival' that was supposed to be in L.A has been delayed.

They did not specify the reason and instead posted the announcement of it's delay on Facebook.

This unexpected delay has disappointed many K-Pop fans.

They have refunded the ticket money, but some fans who live in other states have to deal with their airfare and hotel refunds as well.

Fans have also been posting on social networking sites their disappointment at these sudden changes.

SBS stated, "The investors on our side have suddenly decided to take back their funds and there was nothing we could do. The concert has not been canceled. It is just delayed to October or November."

However, many believe that the real reason for the delay is due to the low ticket sales.

With the concert right around the corner, they were not able to sell over half of the 27,000 seats available.

They were shocked that a concert filled with top notch K-Pop artists still had tickets remaining.

A few months before in May, the SMTOWN concert in L.A sold out of their tickets.

An official stated, "This was a rash decision on their part. With only 3 months after the SMTOWN concert which held 12,000 seats, it is hard to suddenly fill up 27,000 in such a short time. We hope that this doesn't affect the popularity of K-Pop in the states."