The UK Rock & Metal Albums Chart is a record chart which ranks the best-selling rock and heavy metal albums in the United Kingdom. Compiled and published by the Official Charts Company, the data is based on each album's weekly physical sales, digital downloads and streams. In 2007, there were 21 albums that topped the 52 published charts. The first number-one album of the year was Muse's fourth studio album Black Holes and Revelations, released the previous year, which spent the first three weeks of the year at number one. The first new number-one of the year was Chimaira's fourth studio album Resurrection, in March. The final number-one album of the year was the self-titled debut album by Led Zeppelin, which spent the last six weeks of 2007 and the first week of 2008 at the top of the cha