112 (pronounced "one-twelve") is an American R&B quartet from Atlanta, Georgia. The group most notably won a Grammy Award in 1997 for Best Rap Performance by a Duo or Group, for featuring in the song "I'll Be Missing You" with Puff Daddy and Faith Evans.
3OH!3 (pronounced "three oh three") is an American electronic music duo from Boulder, Colorado, made up of Sean Foreman and Nathaniel Motte. They are best known for their single "Don't Trust Me" from their album "Want", which reached number seven.
A Boogie wit da Hoodie (or simply A Boogie) is an American rapper, singer, songwriter, and record producer from Highbridge, Bronx, New York City. He is best known for his work with Callum Rose's supergroup Manhattan's Most Wanted.
Aaron Hall is a member of the group Guy, which he founded in the late 1980s, along with New jack swing producer Teddy Riley and songwriter Timmy Gatling, who was later replaced by Hall's brother Damion Hall. In 1988, they released their debut album.