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
Number 1's (Mariah Carey album) was releasing a collection of her number one singles as a "thank you" and a tribute to her fans, and explained that someday she would release a true greatest hits album containing songs that were not released as singles, as well as singles that did not reach number one. In December 2001, Columbia released the album "Greatest Hits", which featured Carey's number one singles alongside songs she said "needed to be really heard", such as "Underneath the Stars" and "Forever". In an interview with MTV, Carey made the following statement regarding the album: "There's a lot of songs that I'm