All Saints are an English-Canadian girl group formed in London in 1993. Originally founded as All Saints 1.9.7.5 by members Melanie Blatt, Shaznay Lewis and Simone Rainford, the group struggled to find commercial success upon being signed to ZTT Records and were dropped by the label shortly after Rainford left the group. In 1995 the group were joined by sisters Nicole and Natalie Appleton and signed to London Records under their shortened name. All Saints became one of the most popular groups of the 1990s; marketed as an alternative to the Spice Girls with their edgy take on pop music, and signature crop top and cargo pants style which prompted a late 1990s British fashion trend.

The group's debut album, All Saints (1997), peaked at number two on the UK Albums Chart and went on to become the third best-selling girl group album of all time in the UK. The Appleton sisters' private lives soon became a staple feature among tabloid newspapers to the extent that it detracted from the group's music. All Saints' second album, Saints & Sinners (2000), became their first number-one album and achieved multi-platinum success. Amid in-fighting among the group members, All Saints controversially split the following year. The group later reformed after signing to Parlophone Records to release their third album, Studio 1 (2006). However, the album bowed at number 40 in the UK and All Saints were dropped by Parlophone shortly afterward. Following a second split in 2009, the group reunited in 2014 for a series of well received live performances, prompting the group to sign to London for a second time for the release of their fourth album, Red Flag (2016).

In their career, All Saints achieved a string of nine consecutive top-ten hits in the UK, including five number-ones: "Never Ever", "Under the Bridge"/"Lady Marmalade", "Bootie Call", "Pure Shores" and "Black Coffee". "Never Ever" is the second best-selling girl group single of all-time in the UK, behind the Spice Girls' "Wannabe". The group have also won two Brit Awards, two MTV Europe Music Awards and one Ivor Novello Award. As of January 2016, All Saints have sold 12 million records.