2 Become 1 third chart-topper and their first Christmas number-one single in the UK. It sold 209,000 copies in the first three days of release and 462,000 in the first week, becoming the tenth best-selling single of the year. "2 Become 1" sold 1.14 million copies in total, giving the Spice Girls their second and final million-selling single in the UK.Despite being released during the final two weeks of 1996, "2 Become 1" was the 5th best seller of the year. In Ireland, "2 Become 1" was the group's second number-one single, and their first to debut at the top of the Irish
Don't Say You Love Me (M2M song) was M2M's biggest hit and is their most recognisable song. While their next single, "Mirror Mirror", was a top 40 single in Australia and Canada, and reached number 62 on the "Billboard" Hot 100, "Don't Say You Love Me" would remain M2M's only top-40 hit in the US, and their only hit at all in many other countries. The song has been called a one-hit wonder. While speaking favourably of the duo, in 2014 Abby Devora from MTV ranked M2M and the song at number 2 on her list "9 Girl Group One-Hit Wonders You Need To Remember Right Now".