Оңтүстік Африкалық жазба өндірушісі Роберт Джон Лэнг

South African record producer

Robert John "Mutt" Lange ('/l//æ//ŋ/; born 11 November 1948) is a South African record producer, mainly known for his work in rock music as well as his previous marriage to Canadian singer Shania Twain, with whom he co wrote and produced various songs. Her 1997 album Come On Over, which he produced, is the best selling country music album, the best selling studio album by a female act, the best selling album of the 1990s, and the 9th best selling album in the United States. He has also produced songs for, or otherwise worked with, artists such as AC/DC, Def Leppard, The Michael Stanley Band, The Boomtown Rats, Foreigner, Michael Bolton, The Cars, Bryan Adams, Huey Lewis and the News, Billy Ocean, Celine Dion, Britney Spears, The Corrs, Maroon 5, Lady Gaga, Now United, Nickelback, and Muse.

Robert John Lange was born in Mufulira, Northern Rhodesia (today Zambia), and raised in Durban, South Africa. His German mother came from a prosperous family, and his South African father was a mining engineer. Nicknamed "Mutt" at an early age, Lange grew up a fan of country music, in particular the singer Slim Whitman. While studying at Belfast High School in what is now Mpumalanga province, he started a band in which he played rhythm guitar and sang harmonies.

After his national service (1966–1967), Lange formed the band Sound Reason in 1969, together with James Borthwick, a South African TV, stage and film actor. In 1971, he started the group Hocus, recording one album and releasing five singles. In 1978, Lange wrote and produced Ipswich Town's FA Cup Final single "Ipswich Get That Goal", his connection with the club due to their South Africa born player Colin Viljoen. The song is derived from a previous recording, "Give That Thang to Me" by Paul Jones (1977), with some parts rearranged and new lyrics. Beginning production work in 1976, his first major hits came in October 1978 with the UK No. 1 single "Rat Trap" for The Boomtown Rats, followed in July 1979 with AC/DC's hard rock album Highway to Hell (No. 8 UK, No. 17 US). He produced a total of five albums for UK band City Boy from 1976 to 1979. He produced two more albums with AC/DC, including Back in Black (1980) which is, as of 2019, the second best selling album of all time. He also worked with rock group Foreigner on 4, and with Def Leppard on their hit albums, High 'n' Dry, Pyromania, Hysteria and Adrenalize, co writing most of the songs. After Hysteria, Lange bowed out of working with Def Leppard. In 1999, he returned to working with them in a more limited role, co writing three tracks for their album Euphoria, which spawned the single "Promises", a Number 1 hit on the mainstream rock charts. In 1991, he produced Bryan Adams's Waking Up the Neighbours, including co writing "(Everything I Do) I Do It for You" for the Kevin Costner film Robin Hood: Prince of Thieves which – with 16 consecutive weeks at the top from 7 July to 26 October 1991 – holds the record for the longest number of consecutive weeks at Number 1 in the UK singles chart. Lange produced the single "Make You" from the album Great Escape by Irish singer Tara Blaise which was released in May 2008. In the 2001 television film Hysteria – The Def Leppard Story, actor Anthony Michael Hall portrayed Lange.

Lange is a strict vegetarian and a follower of the egalitarian teachings of Sant Mat. He has not given an interview for decades and prefers to live a secluded life, primarily in La Tour de Peilz, Switzerland. Lange met Stevie Vann when the two attended the same school in Northern Rhodesia in the early 1960s, and the two reconnected a few years later while attending Belfast High School in South Africa. They played together in a short lived band named Hocus, and later married and emigrated to the United Kingdom in the 1970s. The marriage broke down in the 1970s. While married, Lange started a five year relationship with Oonagh O'Reilly, an Irish born co worker. In 1979, he married actress Olga Anthony. After hearing Shania Twain's music, he got in touch with her and they spent many hours on the phone. They finally met six months after the initial contact and were married on 28 December 1993. Lange is a teetotaler and, as a result, they had non alcoholic champagne at their wedding. Lange had the song "(Everything I Do) I Do It for You" performed as a sign of his dedication to Twain. In August 2001, their son was born. On 15 May 2008, a spokesman for his employer Mercury Nashville announced that Twain and Lange were separating, after Lange had an affair with Twain's then best friend and secretary Marie Anne Thiébaud, with whom he reportedly continued the relationship and moved to Switzerland. Lange and Twain divorced in June 2010. On 1 January 2011, Twain married Frédéric Thiébaud, the former husband of Marie Anne.