The American Idol Songwriter contest was also held this season. From ten of the most popular submissions, each of the final two contestants chose a song to perform, although neither of their selections was used as the "coronation song". The winning song, "The Time of My Life", was recorded by David Cook and released on <answer>May 22, 2008</answer>.
When did Cook release his version of The Time of My Life?
May 22, 2008