Cee-Lo Green
According to AHH, front-runner for ATL G.O.A.T., Goodie Mob member, and half of Gnarls Barkley *whew*, Cee-Lo is currently working on his next solo album, 'Lady Killer'. Considering we haven't had a proper solo Cee-Lo Green album since 2006, rest assured he'll be in that lane that only he can occupy. Head over here for more details.
Props to AllHipHop