The Jacksons shared lead vocals and solo spots on some songs, but Michael Jackson, who had recently released his multi-platinum selling album, "Off the Wall", handles most of the lead vocal and writing duties. "Triumph" was the Jacksons' first album to reach number-one on the "Billboard" R&amp;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 until "Victory" in 1984. On December 10, 1980, the album was certified Platinum for the sales of over 1 million copies in the United States. It was nominated for the Grammy Award for Best R&amp;B Performance by a Duo or Group with Vocals in 1981.