Sheffield rock band the Arctic Monkeys have topped the UK singles charts with their debut track, after building up a fan base on the internet.
Arctic Monkeys stole the top spot from pop trio Sugababes
I Bet You Look Good On The Dancefloor trumped pop trio the Sugababes after three weeks in the number one spot.
Arctic Monkeys gained a significant following thanks to the marketing power of the internet, and were eventually signed by Domino Records.
Prodigy took the album top spot with singles compilation album Their Law.
Sugababes fourth album Taller in More Ways dropped one place to number two, with Simply Red's Simplified entering the charts at number three.
Blunt's Back to Bedlam is 2005's biggest-selling album
Katie Melua's Piece by Piece held the number four spot, ahead of James Blunt's Back to Bedlam, which this week became the biggest-selling album of the year selling 1,526,000 copies - and overtaking Coldplay's X&Y.
Arctic Monkeys were widely predicted to enter the charts at number one.
The band has been communicating with fans almost daily on their forum, and concerts have sold out around the UK. The buzz was picked up by record label Domino, home of Franz Ferdinand, who signed them in June 2005.
Boy band McFly came in at number three with new single I Wanna Hold You.
Robbie Williams dropped two places to number four with Tripping, while Pussycat Dolls, featuring Busta Rhymes, dropped from three to five with Don't Cha.