The organizers of the Bonnaroo Music and Arts Festival in Tennessee say they suspended ticket sales after the online purchase site ran into technical problems.
"We're blown away by your amazing response to this year's Bonnaroo lineup," co-producer Rick Farman told The (Nashville) Tennessean. "Unfortunately, the ticketing system was blown away as well."
A date for tickets to go back on sale would be announced by Monday afternoon, the newspaper said.
The June 7-10 festival will be headlined by Radiohead, Red Hot Chili Peppers and Phish.