Simplify the following text for a Grade 9 native English-speaking person.
Original: Cabell `` Cab '' Calloway III ( December 25 , 1907 -- November 18 , 1994 ) was an American jazz singer and bandleader .
Simplified: Cabell `` Cab '' Calloway III ( December 25 , 1907 -- November 18 , 1994 ) was an American jazz musician and actor .