Two-9 is an American hip hop collective from the East side of Atlanta, Georgia. The collective currently houses Key!, Curtis Williams, Jace, CeeJ, Cartier Dave (f/k/a Dav E), Lightskin Mac11 and DJ Osh Kosh. As well as the sub-groups Retro Su$h! (Jace & CeeJ) and FatKidsBrotha (Cartier Dave & Lightskin Mac11).
The group was founded by Williams and Key! in 2009. They are currently signed under Mike Will Made It's label EarDrummers Entertainment.