 " Blurred Lines " , and Ratajkowski 's associated video performance , was prominent beyond the sociopolitical controversies . The song became the number one song of 2013 on music charts in many countries , including Canada , Ireland , the Netherlands , New Zealand , and the United Kingdom . Although second on the year @-@ end US Billboard Hot 100 chart , the song 's twelve consecutive weeks at number one made it the longest @-@ running number one song of the decade until " Uptown Funk " spent fourteen consecutive weeks at number one in 2015 . The song also remained in the news due to a copyright infringement lawsuit and appeal . 
