Question: Airport is a 1970 American disaster-drama film starring Burt Lancaster and Dean Martin, Martin was an American singer, actor, comedian, and film producer, and was nicknamed what?
Sentence (from "Dean Martin"): One of the most popular and enduring American entertainers of the mid-20th century, Martin was nicknamed the "King of Cool" for his seemingly effortless charisma and self-assurance.
Relevant evidence: Yes