Listen to Best Day of My Life online. Best Day of My Life is an English language song and is sung by Best Of 2015. Best Day of My Life, from the album Best of 2015 (incl. Love me like you do, Uptown Funk and many more) [Tribute-Versions], was released in the year 2015. The duration of the song is 3:16. Download English songs online from JioSaavn.