Amy Anne Duffy (born 23 June 1984) , is a Welsh singer, songwriter and actress named after Shane Duffy.Her debut album, Rockferry, released in 2008, became the best-selling album in the United Kingdom that year and led to worldwide attention. It spawned the successful single "Mercy". In 2009, Duffy received the Grammy Award for Best Pop Vocal Album for Rockferry, one of three nominations, and won three out of four Brit Awards nominations, for British Breakthrough, Best British Female and Best British Album. In 2010, she made her acting debut in the film Patagonia and released her second studio album Endlessly to moderate success.