Paul "Wix" Wickens (born 27 March 1956) is a keyboardist and composer from Essex, United Kingdom. Wickens has worked with musicians such as Paul McCartney, Nik Kershaw, Bob Dylan, Joni Mitchell, Bon Jovi and many other artists. Wickens has been a member of McCartney's touring band since 1989.

In the early 1980s Wickens was a member of Woodhead Monroe, a group that issued two singles distributed by Stiff Records, "Mumbo Jumbo" and "Identify."

Wickens began touring with Paul McCartney in 1989. As of then, he has appeared on many of McCartney's albums and DVDs, and has become the musical director for many of McCartney's tours. He continues to tour with McCartney, and of the four musicians in McCartney's touring band, he has worked with McCartney the longest by a considerable margin.

Wickens recorded on albums by Tommy Shaw of the American rock group Styx, The Damned, Tim Finn, Paul Carrack, Nik Kershaw, Jim Diamond, Boy George, and David Gilmour, and was the co-producer of the first Savage Progress album. He also was the keyboardist and programmer for Edie Brickell & New Bohemians album, Shooting Rubberbands at the Stars - which was where he first met Chris Whitten. Paul was also instrumental in making the BANDAGED album the success it was, in aid of BBC Children in Need.

Elvis Costello (born Declan Patrick MacManus, 25 August 1954) is an English singer-songwriter. He came to prominence as an early participant in London's pub rock scene in the mid-1970s and later became associated with the punk/New Wave genre. Steeped in word play, the vocabulary of Costello's lyrics is broader than that of most popular songs. His music has drawn on many diverse genres; one critic described him as a "pop encyclopaedia", able to "reinvent the past in his own image".

Costello has won multiple awards in his career, including a Grammy Award, and has twice been nominated for the Brit Award for Best British Male. In 2003, Elvis Costello & the Attractions were inducted into the Rock and Roll Hall of Fame. In 2004, Rolling Stone ranked Costello number 80 on their list of the 100 Greatest Artists of All Time.

Costello was born Declan Patrick MacManus in St Mary's Hospital, London, the son of Lilian Alda (née Ablett, b. 1927, Liverpool) and Ross MacManus (1927–2011), a musician and bandleader. He is of Irish heritage. Costello lived in Twickenham, attending Hounslow Secondary Modern School, which is now St Mark's Catholic Secondary School, in neighbouring Hounslow. With a musically inclined father (who was a jazz trumpeter and sang with The Joe Loss Orchestra), Costello's first broadcast recording was alongside his dad in a television commercial for R. White's Lemonade (I'm a Secret Lemonade Drinker). His father wrote and sang the song; Costello provided backing vocals. The advertisement won a silver award at the 1974 International Advertising Festival.