Engineer Teezio Speaks on Mixing Gunna’s Wunna Album and Working on Jack Harlow’s No. 1 Record ‘First Class’Engineer Teezio Speaks on Mixing Gunna’s Wunna Album and Working on Jack Harlow’s No. 1 Record ‘First Class’Engineer Teezio explains working on Gunna and Chris Brown's albums, and Jack Harlow's No. 1 single "First Class." Robby Seabrook IIIRobby Seabrook III