Released on this day in 1975, A Night at the Opera is the fourth studio album by Queen. Produced by the band and Roy Thomas Baker, it was reportedly the most expensive album ever recorded at the time of its release. Featuring the singles "Bohemian Rhapsody" (the band's first UK #1 single) and "You're My Best Friend," the album topped the UK Album Chart and peaked at number four on the US Chart, and became the band's first platinum-selling album in the US. The album has sold over 6 million copies worldwide.
In honor of the anniversary, watch the Classic Albums episode Queen - The Making of 'A Night At The Opera' below.