List of number-one singles from the 2000s (UK)
| UK Singles Chart number ones |
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UK Singles Chart Official Charts Company Christmas number one |
The UK Singles Chart is compiled by the Official Charts Company (OCC) on behalf of the British record industry. In the 2000s the chart week ran from Sunday to Saturday, and the top 40 singles were revealed each Sunday on BBC Radio 1. Before the advent of music downloads, it was based entirely on sales of physical singles from retail outlets, but since 2005 permanent downloads have been included in the chart compilation.
During the 2000s, 275 singles reached the number-one position on the chart. Over this period, Westlife were the most successful group at reaching the top spot, with 11 number-one singles. Rihanna and Jay-Z's song "Umbrella" spent 10 weeks at number one in 2007, the longest spell at the top of the charts since Wet Wet Wet's 1994 hit "Love Is All Around", which topped the charts for 15 weeks. The Internet allowed music to be heard by vast numbers of people on social networking sites such as YouTube and Myspace; it also increased piracy. This and the introduction of the UK Singles Downloads Chart in 2004 led to a decrease in record sales and a reduction in the number of copies sold of a number-one record on the singles chart.Gnarls Barkley's "Crazy" became the first song to reach the top of the charts based on downloads alone in 2006, remaining at number one for nine consecutive weeks. Physical single sales had been falling for more than a decade but digital single sales finally turned the trend around in 2008 with combined physical and digital single sales growing 33% over the previous year.Lily Allen made herself known on the Internet through her Myspace page, and following this exposure, her debut single "Smile" peaked at number one. Three years later, her single "The Fear" topped the chart for four consecutive weeks, being the longest running number one single of 2009.
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