In July 1968, the Beatles moved Apple Corps, their multimedia corporation, into 3 Savile Row. A studio was built in the basement; though it was poorly designed, the Beatles recorded "Let It Be" there before a new studio was constructed in 1971 at an estimated cost of $1.5 million. Various artists, including Badfinger, Mary Hopkin, and Marc Bolan recorded in the basement studio until it closed in May 1975. The Beatles' final live performance, known as the "rooftop concert", was held on the roof of the building, on 30 January 1969, and was recorded for the documentary film "Let It Be"; the last words of the band, spoken by John Lennon as the police stopped the performance, were "I hope we passed the audition."