Foil (song) Foil (song) "Foil" is a song by American musician "Weird Al" Yankovic from his fourteenth studio album, "Mandatory Fun" (2014). The song is a parody of the 2013 single "Royals" by Lorde. The song begins as an ode to the multiple uses of aluminum foil for food storage, but takes a darker turn in its second verse, parodying conspiracy theories, the New World Order, and the Illuminati. The song's music video stars Yankovic as the host of a cooking program, and features cameo appearances from Patton Oswalt, Tom Lennon, and Robert Ben Garant. The song opens with Yankovic lamenting that
FOIL method FOIL method In elementary algebra, FOIL is a mnemonic for the standard method of multiplying two binomials—hence the method may be referred to as the FOIL method. The word "FOIL" is an acronym for the four terms of the product: The general form is: Note that is both a "first" term and an "outer" term; is both a "last" and "inner" term, and so forth. The order of the four terms in the sum is not important, and need not match the order of the letters in the word FOIL. The FOIL method is a special case of a more