The ticket-selling giant TicketMaster claims a “pricing error” is to blame for $25 Kenny Chesney tickets for the June 18th concert in Philadelphia. Thought you were getting a good deal? Well, if you want to keep those tickets you’ll have to fork over an additional $74.50 or your tickets will be no good.

Ticketmaster is cancelling $25 tickets it mistakenly sold for Kenny Chesney’s June 18, 2011, concert in Philadelphia, because Ticketmaster said the tickets were supposed to be priced at $99.50 each.

How many erroneous tickets the company sold to the Lincoln Financial Field show is unknown, but considering the singer-songwriter’s immense popularity, and the size of the stadium, the number could be in the thousands. The stadium, which is best known as the home of the Philadelphia Eagles, holds close to 70,000 spectators, and the seats in question were in the upper deck Club Level sections.

Tickets for the concert went on sale on Saturday, November 13, and fans who ordered the $25 tickets were notified of the mistake in an e-mail sent out this past weekend. Ticketmaster apologized for the mistake and gave fans the choice between receiving a full refund or re-purchasing the tickets at new price, which is three-times more expensive.

Read TicketMaster’s email to ticket buyers here.

Did this affect any of you?