CeeLo Green is a musical artist.
Thomas DeCarlo Callaway ( born May 30 , 1974 , better known by his stage name CeeLo Green ( sometimes rendered as Cee Lo Green ) , is an American singer , rapper , songwriter , record producer , actor , and businessman . Green came to initial prominence as a member of the Southern hip hop group Goodie Mob and later as part of the soul duo Gnarls Barkley , with record producer Danger Mouse . Internationally , Green is best known for his soul work : his most popular was Gnarls Barkley 's 2006 worldwide hit `` Crazy '' , which reached number 1 in various singles charts worldwide , including the UK . His next two singles , `` It 's OK '' and `` Bright Lights Bigger City '' were also hits in Europe .