Latter-day chanteuse Lana Del Rey courts controversy in "National Anthem," which casts the rapper A$AP Rocky as a JFK surrogate to her Jackie O. (While she's as it, she also plays a breathy Marilyn Monroe.) But director Anthony Mandler tells MTV he never meant to mock the Camelot era, but rather to explore those American archetypes: ""How many artists and rappers and singers have you seen running around in badly fitted suits, acting like the president … ? We want this to be very serious."