So is the fifth studio album by English singer-songwriter Peter Gabriel, released on 19 May 1986 by Charisma Records and Virgin Records. After working on the soundtrack to the film Birdy (1984), producer Daniel Lanois was invited to remain at Gabriel's Somerset home during 1985 to work on his next solo project. Initial sessions for So consisted of Gabriel, Lanois and guitarist David Rhodes, although these grew to include a number of percussionists.

Peter Brian Gabriel is an English singer, songwriter and human rights activist. He was the original lead singer of the progressive rock band Genesis. After leaving the band in 1975, he launched a solo career with "Solsbury Hill" as his first single. His fifth studio album, So (1986), is his best-selling release and is certified triple platinum in the UK and five times platinum in the US. The album's most successful single, "Sledgehammer", won a record nine MTV Awards at the 1987 MTV Video Music Awards and, according to a report in 2011, it was MTV's most played music video of all time.