premise: Ricardo Montalbán was a singer.
hypothesis: Escape from the Planet of the Apes . It stars Roddy McDowall , Kim Hunter , Bradford Dillman and Ricardo Montalbán . Ricardo Gonzalo Pedro Montalbán y Merino , KSG ( [ ˌmɒntəlˈbɑːn ] [ montalˈβan ] ; November 25 , 1920 -- January 14 , 2009 ) was a Mexican actor .