112 formed in Atlanta, Georgia and was initially a trio comprised of Daron Jones, Michael Keith and Reginald Finley. While the guys were in high school, they called themselves Forte and performed in talent shows at church and school. The group expanded to five members, adding Aldon Lagon as a bass, and Marvin Scandrick as a high falsetto. Parker. However, there was a lot of drama at that time within the group, as Marvin's mother attempted to control the group (causing the group to add its sixth member, Quinnes Parker in an attempt to replace Marvin), and Aldon was kicked out for being incapable of keeping up with the group's harmonies.

The members of the group grew discouraged with their lack of success and began focusing on other interests. At this time, Reginald Finley left the group to enter the military and the group was down to its well-known roster of Parker, Keith, Scandrick, and Jones. They decided to try a shot at a career one last time and performed at a talent show in 1994, where they succeeded at catching the attention of Courtney Sills and Kevin Wales, the group's would-be managers. Interestingly enough, at this performance, Marvin did not perform and instead, Reginald did as he was on military leave. Despite this roster change, Reginald was forced to return to his military position, and Marvin came back to the group.

Under the management of Sills and Wales, the group met Bad Boy Records CEO Sean "Puffy" Combs and were signed to his label. The group had performed for Combs in front of Club 112 in Atlanta, Georgia, and so, changed their name to 112 after the club. The group was signed in 1996 as the first urban vocal group on Bad Boy Records, and were also the most successful.

Their self-titled debut album, released in 1996, performed well, eventually going double platinum. It featured the hit singles 'Only You' and 'Cupid,' both of which peaked at #13 on the Hot 100 and #3 and #2 on the R&B charts respectively. The album's third single, 'Come See Me,' failed to live up the earlier tracks success, reaching #33 on the Hot 100 and #15 on the R&B charts.

In 1998, the group released their second double platinum album, Room 112. The album's biggest hits were 'Love Me,' reaching #8 on the R&B charts, and 'Anywhere' which reached #5. Both tracks reached the top 20 on the Hot 100 as well.

112's third album, Part III was released in 2001, and featured more of the group's hit making ability. Featuring two of the group's biggest singles to date, 'Peaches & Cream' and 'It's Over Now,' the album managed to go platinum. 'Peaches & Cream' managed to reach #4 on the Hot 100 and #2 on the R&B charts while 'It's Over Now' was the group's only #1 hit on the R&B charts. The album's last single, "Dance With Me," reached #39 on the Hot 100 and #20 on the R&B charts.

In 2003, the group left Bad Boy Records, releasing their fourth album Hot & Wet on Def Soul. The album failed to live up to the group's previous success. The title track peaked at #70 on the Hot 100, while the album's later single, "Right Here For U" peaked at #72 on the R&B charts.

Pleasure & Pain, the group's fifth album, was released in 2005 and returned the group to their earlier success. The album went platinum, largely because of the hit single 'U Already Know.' The track hit #3 on the R&B charts and #32 on the Hot 100. Interestingly, the album is the group's first to come with a parental advisory, reportedly caused by a track featuring Three 6 Mafia.

After being dropped from Def Jam, the group formed their own label, One Twelve Music Group. Daron Jones briefly left the group in pursuit of a solo career, and the group's other members have begun to pursue solo careers as well. Q. Parker has an album Real Talk, due out in 2008, and Slim has an album, Love's Crazy expected for the same year.