As of October 2017, which is the biggest selling song by a woman in the UK?

"Believe" is a song recorded by American singer Cher for her twenty-second album, "Believe" (1998), released by Warner Bros. Records. It was released as the lead single from the album on October 19, 1998. It was written by Brian Higgins, Stuart McLennen, Paul Barry, Steven Torch, Matthew Gray and Timothy Powell, with Cher also contributing, and was produced by Mark Taylor and Brian Rawling.

In the United Kingdom, "Believe" spent seven weeks at number one on the UK Singles Chart, becoming Britain's biggest-selling single of 1998, and won its writers three Ivor Novello Awards (for Best Selling UK Single, for Best Song Musically and Lyrically, and for International Hit of the Year) at the 1999 ceremony. On 1 August 2014, "Believe" became the first female solo single to be certified Triple Platinum in the United Kingdom for selling 1,800,000 copies. As of October 2017, the song has sold 1,830,000 copies in the UK, making it the biggest selling song by a woman there.