The anniversary of U.K. release of Pink Floyd‘s seminal 1973 album The Dark Side of the Moon
happens this month, and in honor of the occasion, the band is hosting an online event this weekend. For just 24 hours beginning at 7:01 p.m. ET this Saturday, the record will stream from beginning to end via the band’s official website. As the album is streaming, fans will have the chance to Tweet messages and photos that will alter a special moon on the website.