I Did n't Know " is a song by Turkish singer , producer and television presenter Serhat . The song was composed by Olcayto Ahmet Tuğsuz with the lyrics written by Nektarios Tyrakis . It was released on 9 March 2016 , and represented San Marino in the Eurovision Song Contest 2016 . Later in March it was decided that the original version would be replaced by the disco version in the contest . The song will be performed by Serhat , who was selected internally by the Sammarinese national broadcaster San Marino RTV ( SMRTV ) to represent San Marino in the 2016 contest in Stockholm , Sweden
Eurovision Song Contest 2016
Eurovision Song Contest 2016
I Didn't Know