The411: The big announcement about multiple Grammy-winning legend Elton John coming to Louisville in April has the city all a buzz. Even though the superstar will not be in concert until the day before "Thunder Over Louisville" many will be waiting anxiously for the tickets to go on sale Friday, March 18th at 10am. Tickets start at $19.50 to $139. Tickets will be available at Ticketmaster.com, Livenation.com, and the KFC YUM! Center Ticket Office.