Guy Stevens (13 April 1943 – 29 August 1981) worked in a number of different roles in the British music industry including producer and manager. He gave the rock bands Procol Harum and Mott the Hoople their distinctive names.

Stevens was born in East Dulwich, London and is probably best known as the producer of The Clash's acclaimed 1979 album, London Calling. The band themselves have always held up Stevens' input as a major factor in the album's popularity and quality. However it was not the first time Stevens had worked with the Clash. In 1976 Stevens was present, although not clearly as a producer on a demo session the band undertook before they were signed.

Mick Jones recalled that:

The Clash involved Stevens because they recognized the influential role he had played in the British beat and blues booms of the 1960s. The Who, The Small Faces, The Rolling Stones and many others used Stevens' knowledge of the American R&B and soul scene, as a source for their own repertoire, having heard of him through his deejaying at the influential New Scene Club in Ham Yard, London W.1, where he exercised his obsessive love of rock and roll, R&B, ska, jazz and soul for an audience that counted The Beatles and Eric Clapton amongst them.

Stefani Joanne Angelina Germanotta (/ˈstɛfəniː dʒʌrməˈnɑːtə/ STE-fə-nee jurr-mə-NAH-tə; born March 28, 1986), known by her stage name Lady Gaga, is an American singer and songwriter. Born and raised in New York City, she primarily studied at the Convent of the Sacred Heart and briefly attended New York University's Tisch School of the Arts before withdrawing to focus on her musical career. She began performing in the rock music scene of Manhattan's Lower East Side, and was signed with Streamline Records by the end of 2007. During her employment as a songwriter for the record company, her vocal abilities captured the attention of recording artist Akon, who signed her to his label Kon Live Distribution.

Lady Gaga came to prominence as a recording artist following the release of her debut album The Fame (2008), which was a critical and commercial success that topped charts around the world and included the international number-one singles "Just Dance" and "Poker Face". After embarking on the The Fame Ball Tour, she followed the album with The Fame Monster (2009), which spawned the worldwide hit singles "Bad Romance", "Telephone" and "Alejandro". The album's success allowed her to embark on the eighteen-month long Monster Ball Tour, which later became one of the highest-grossing concert tours of all time. Her most recent album Born This Way (2011) topped the charts of most major markets and generated more international chart-topping singles, including "Born This Way", "Judas" and "The Edge of Glory". Besides her musical career, she involves herself with humanitarian causes and LGBT activism.