LL Cool J was in an American navy submarine.
James Todd Smith ( born January 14 , 1968 ) , known professionally as LL Cool J ( short for Ladies Love Cool James ) , is an American rapper , actor , author , and entrepreneur from Queens , New York . LL Cool J has also appeared in numerous films , including In Too Deep , Any Given Sunday , S.W.A.T. , Mindhunters , and Edison .