Listen to Best Days of Your Life (Karaoke Version) [Originally Performed By Kellie Pickler] online. Best Days of Your Life (Karaoke Version) [Originally Performed By Kellie Pickler] is an English language song and is sung by Ellen Lang. Best Days of Your Life (Karaoke Version) [Originally Performed By Kellie Pickler], from the album Karaoke Party Mix, Vol. 1, was released in the year 2017. The duration of the song is 3:47. Download English songs online from JioSaavn.