"Say You'll Be Mine" is a song by British dance-pop group Steps, released as a double A-side with a cover version of Kylie Minogue's "Better the Devil You Know". Steps' cover of "Better the Devil You Know" was later included as the opening track on their third studio album, Buzz (2000), but did not serve as a lead single. A limited-edition single was released as a digipack that was included with a doubled-sided poster in the sleeve. The song is the first to feature all five members on lead vocals.

Steps are a British dance-pop group consisting of Lee Latchford-Evans, Claire Richards, Lisa Scott-Lee, Faye Tozer and Ian "H" Watkins. Steps were formed in May 1997 and achieved two number-one albums in the UK, 14 consecutive UK top-5 singles including two number ones, and a string of hits across Europe. The group has sold over 22 million records worldwide. In-addition to earning a BRIT Award nomination in 1999, for Best Newcomer, the group would be an opening support act for Britney Spears on her debut American tour the same year. When Richards and Watkins departed to form a recording duo, the group disbanded, on 26 December 2001 (officially). Their penultimate single reached No. 5 on the UK charts, while their final album of greatest hits, Gold (2001), was the group's second No. 1 album in the UK.