" Blurred Lines " peaked at number one in at least 25 countries and became the number one song of 2013 in several . It became Thicke 's first , T.I. 's fourth , and Williams ' third number-one single in the US , where it was also the longest running number one single for that year . It became one of the best-selling singles of all time , with sales of 14.8 million , simultaneously breaking the record for '' the largest radio audience '' in history . The single was nominated for two Grammys at the 56th Annual Grammy Awards , including Record of the Year and Best Pop Duo/Group Performance . The song has been parodied and covered numerous times
56th Annual Grammy Awards
56th Annual Grammy Awards
Blurred Lines