3:36 Gregorian - Once In a Lifetime (Original Music Video) 5:22 Gregorian - Once In A Lifetime (Lyrics) 3:50 Gregorian - Once In A Lifetime (Sadisfaction - The First Album) 6:12 \"Once In A Lifetime\" *[L.A. Mix]* - Gregorian 3:36 Gregorian - Once In A Lifetime (REMASTERED ) 5:26 Once In A Lifetime (Extended Mix) - Gregorian 5:25 Gregorian - Once In A Lifetime (extended mix) 5:22 Gregorian - Once In A Lifetime (Instrumental No Vocal HD) 5:22 Once In A Life Time ~ By Gregorian with lyrics 4:42 Gregorian Once In A Life Time 5:22 Gregorian - Once In A Lifetime 5:30 Gregorian - Once In A Lifetime (Extended Version) 1:32 Gregorian - Once In A Lifetime *RARE* 1991 3:59 Gregorian - Once In A Lifetime 4:43 Once in a lifetime - Enigma 6:34 Gregorian - Once In A Lifetime (Extended Remix) 3:33 Gregorian - So Sad (HD) 4:34 Gregorian - Forever Young 3:26 Gregorian - The Sound Of Silence (Pure Version) - Official Video 5:20 Gregorian - Once In A Lifetime 5:21 Gregorian - Once In A Lifetime HQ