between the two resorts. The Jet nightclub was added in 2005, operated by The Light Group. The club was divided across three rooms. It featured projection imagery and 120 LED ceiling tiles. The club operated until 2011, when it was renamed 1 OAK, standing for "one of a kind". The club featured artwork by Roy Nachum. It closed in early 2020. Revolution, an $11 million nightclub themed after the Beatles, was added in 2006, to accompany the resort's opening of the Beatles-themed show Love by Cirque du Soleil. It was a joint venture between Apple Corps and Cirque du Soleil, marking the latter's first Las Vegas nightclub. The club fit up to 400 people. The entrance was marked by 10-foot-tall capitalized letters spelling out the club's name, with "EVOL" spelled backwards to form the word "LOVE". The club closed in 2015. The resort includes a topless pool area known as Bare Pool Lounge, opened in 2007. It is also operated by The Light Group. It features DJ music, and is popular among local residents, as well as celebrities. Volcano The Mirage opened with an artificial volcano attraction, located in front of the resort. It became a signature attraction for Las Vegas. The volcano, free to the public and visible to pedestrians, erupts regularly each night. Gas jets provide the flames for the volcano, which has water flowing down its sides into a lagoon, covering . Natural gas pipes, eight inches in width, are used in conjunction with a recirculating system to give the appearance that the lagoon is on fire. In addition, whitewater from the volcano is covered in red lighting to simulate lava. Originally, the lagoon area was to include a dormant volcano. Lighting designer David Hersey, who was hired to light the resort, suggested making the volcano erupt. Wynn had been satisfied with the lagoon feature as-is, and he was concerned that an erupting volcano would look underwhelming. However, he approved the idea after seeing a scale model. Hersey designed the attraction with Brinkerhoff. They added a texture to the rock formations to produce micro bubbles in the water, fulfilling Wynn's desire to have whitewater in the attraction, as it allowed for adequate lighting. Wynn disliked the sulfuric odor given off by the volcanic eruptions, so a piña colada scent was added. In 2005, the design firm WET was hired to begin planning an upgrade of the volcano.