Trident Studios was a British recording facility, located at 17 St Anne's Court in London's Soho district between 1968 and 1981. It was constructed in 1967 by Norman Sheffield, drummer of the 1960s group the Hunters, and his brother Barry.

Queen II is the second studio album by the British rock band Queen. It was released on 8 March 1974 by EMI Records in the UK and Elektra Records in the US. It was recorded at Trident Studios and Langham 1 Studios, London, in August 1973 with co-producers Roy Thomas Baker and Robin Geoffrey Cable, and engineered by Mike Stone. It is significant for being the first album to contain elements of the band's signature sound of multi-layered overdubs, vocal harmonies, and varied musical styles.