The country trio's second album sold 481,000 copies to storm to the chart summit - more than 10 times the 43,000 copies their eponymous debut sold to debut at number four in 2008.

The album is the first number one on the US chart for EMI since Keith Urban's Defying Gravity in April 2009. Both albums are on the Capitol Nashville imprint. Ironically, the album's coronation - and the simultaneous presence of four EMI albums in the Top 10 for ...