The Jacksons shared lead vocals and solo spots on some songs, but Michael Jackson, who recently released his multi-platinum selling album, Off the Wall, handles most of the lead vocals. Triumph was the Jacksons' first album to reach number-one on the BillboardR&B Albums chart since Maybe Tomorrow in 1971. The album sold over two million copies worldwide, and the Jacksons did not release another studio LP for four years after Triumph's release. On December 10, 1980, the album was certified Platinum for the sales of over 1 million copies in the United States.
Audra Tillman, Brian Stilwell, Brigette Bush, Gerry Gruberth, Lita Aubrey, Peter Wade, Rhonda Gentry, Roger Kenerly II, Soloman Daniels, Yolanda Kenerly – backing vocals (The Children's Choir)
Arnold McCuller, Bob Mack, Bunny Hull, Carmen Twillie, Carolyn Dennis, Gerry Garrett, Gregory Wright, Jim Gilstrap, Josie James, Lewis Price, Lisa Roberts, Paulette Brown, Paulette McWilliams, Phyllis St. James, Tyrell "Rock" Deadrick, Roger Kenerly-Saint, Ronald Vann, Roy Galloway, Venetta Fields – backing vocals (The Adults' Choir)