Marc Nelson was born in Philadelphia, Pennsylvania and is the son of Phyllis Nelson, known for the dance hit 'I Like You.' He was a member of Boyz II Men while still attending Philadelphia's High School of Performing Arts. However, Nelson left the group before they put out an album to pursue his own solo career.
After getting a solo deal with Capitol Records, Marc Nelson scored a hit with a cover of Marvin Gaye's 'I Want You,' which hit #26 on the R&B charts. His follow-up 'Count On Me' reached #48 on the R&B charts. Nelson released his solo album, I Want You in 1991.
Following the release of his solo album, Nelson began to concentrate his talents as a songwriter. Drawing the attention of Babyface, Nelson wrote for artists like Toni Braxton, Brandy, Tyrese and Jon B. Through Babyface, Nelson met the four members of the group Az Yet. He joined with the group as a second lead vocalist and together, they were signed to LaFace Records.
As a member of Az Yet, Nelson saw a great deal of success. The group's self-titled debut album was released in 1996 and went platinum. It had a great deal of success with the single 'Last Night' going gold and topping the R&B charts. In addition, it reached #9 on the Hot 100. Their second single, 'Hard To Say I'm Sorry' did even better, going platinum and reaching #8 on the Hot 100.
Nelson left the group after being driven away by the business end of things. He began writing intensely and then, when satisfied with what he'd produced, returned to his solo career once more. He released a second album, Chocolate Mood in 1999. The album featured Nelson's biggest solo hit '15 Minutes' which reached #4 on the R&B charts and #27 on the Hot 100.
Nelson is currently a member of the newly formed R&B super-group Blayse. The group includes fellow R&B hit-makers Tony Grant of Az Yet, Gary 'Lil G' Jenkins of Silk and Terrell Phillips of Blackstreet. The group is working on a debut album with Stargate, Orange Factory, and Mike City.