On January 12 , 2016 , San Marino RTV announced that Serhat will represent San Marino in the Eurovision Song Contest 2016 in Stockholm . On March 9 , 2016 , the song that he will perform in the contest , " I Did n't Know " was released . He performed on May 10 , 2016 during the first semi-final of the Eurovision contest and failed to qualify to final , ending in 12th place . On November 2 , 2017 , the disco version of " I Did n't Know " featuring Martha Wash that was re-arranged by the Swedish musician Johan Bejerholm was released as a single , along with a new music video . The song entered from the 47th place to the Dance Club Songs chart of the United States , and reached to its peak position , the 25th place on its fourth week in the chart . Thus , Serhat became the first Turkish singer that appeared in the chart . A new version of " Total Disguise " featuring Elena Paparizou was released on June 22 , 2018 by CAP-Sounds . The music video of the single was released on September 14
Eurovision Song Contest 2016
Eurovision Song Contest 2016
Serhat (singer)