Ruby
Written by Nick Baines, Nick J.D. Hodgson, Simon Rix, Andrew White, and Ricky Wilson, "Ruby" was released on February 5, 2007, as the lead single from Kaiser Chiefs' second album Yours Truly, Angry Mob. The song became the band's first British number-one single and ended 2007 as the year's 10th-biggest-selling single in the UK, with total sales of 313,765 copies.