Info from Wikipedia
The Hampton Beach Casino Ballroom is a seasonal live music and comedy venue located on the boardwalk of Hampton Beach, New Hampshire, United States. The venue is open from April to November, and within those eight months schedules upwards of 70 shows.
The rise of rock and roll brought many more changes to the Casino Ballroom. The owners at the time sold the facility to a consortium of local businessmen interested in restoring it to its former glory. After renovating the facility and restoring many of its original features, the Ballroom reopened in the 1970s as Club Casino. Renovations, however, were not enough to draw promoters back to the venue. Seeing an opportunity, one of the new owners sought to book then-little-known names such as U2 and aging stars such as Ray Charles as a way of restoring the venue's reputation. His bet paid off, and following another renovation in the late '70s and early '80s, Club Casino began booking the likes of Jerry Seinfeld, Melissa Etheridge and Phish. So popular was the location, in fact, that it was able to fit 50 events into a three-month period, unheard of at the time for most music halls.