John Cena goes by Prototype, Dr. of Thuganomics, The Franchise, The Marine, The Champ, Chain Gang, and Super Cena.
The following are John cena's nick names: a. The Doctor of Thuganomics b. The Champ c. The Chain Gang Commander d. The Chain Gang Soldier e. The Marine f. The CeNation Commander-in-chief g. The voice of Little Jimmy's h. etc
Because that was part of his Thugganomic/Chain Gang gimmick. The whole hip hopish white boy style became old leading him to his Cenation gimmick up to now.
I could find no record of a film with an actual chain gang singing this song. It is in "Cadence" (1990). Stars Charlie Sheen. This is an Army Stockcade film, so I don't believe they work as a chain gang.
Gang