Coldplay Coming, but Where?

The announcement Monday of an intimate concert by Coldplay on Aug. 7 at a "secret location" was accompanied by a poster picturing the band in front of a structure that appears to be the Montauk Lighthouse.

The invitation-only show will be sponsored by SiriusXM Radio, which is holding a contest for its subscribers to win tickets to the performance, which will be broadcast live on SiriusXM, as well as a trip for two to "New York," along with a hotel stay.

The announcement prompted speculation that the band would play at Montauk's Surf Lodge, which recently reinstated its concert series after a music license snafu delayed the start of its summer music season. But Steve Kasuba, a Surf Lodge spokesman, said Wednesday that the Coldplay show would not take place there; a band called Bob Moses is scheduled for that day.

Chris Martin, Coldplay's lead singer, has a connection to the area; he was married to Gwyneth Paltrow, and the couple bought a house in Amagansett. He and Ms. Paltrow separated several years ago and were recently divorced, but are often still seen together with their children.

The band is touring following the release of its most recent album, "A Head Full of Dreams."