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
British Hit Singles & Albums to those of the other charts: around 30 shops in 1963 in comparison to more than 100 used by "Melody Maker", and later around 80 in comparison to "NME"s 150 and "Melody Maker"s 200. As a result, the placings in that chart were more open to error and manipulation – a situation further worsened by the larger number of records listed in the chart. The first edition was published as "The Guinness Book of British Hit Singles" in November 1977. It wasn't the first Guinness music reference publication, as the previous year a book called "The Guinness Book of Music