Gregorian feat. Sisters of Oz

Comprised of:

1. Gregorian Group, Began: 1991 in Germany , Ended: 1991 in Germany
2. Sisters of Oz Group, Began: 1991 in Hamburg , Ended: 1991 in Hamburg

Recordings (3)

1. Once in a Lifetime (extended version) 5:25 (11 Oct 1991)
2. Once in a Lifetime (L.A. mix) 6:12 (11 Oct 1991)
3. Once in a Lifetime (Summer mix) 5:38 (1991)