Crossword clues for Letter before 19-Across:ZETALetter before 19-AcrossNES19- and 80-Across lettersITHADTOBEYOUClassic song about a soulmate ... or a phonetic hint for repeated pairs of letters in 19-, 27- and 42-AcrossICANTHEARYOUCrowd-rallying cry, or a hint to a 40-Down letter in 19-, 27- and 41-AcrossTHEBIGAPPLEEmpire State Building locale ... or a hint to three letters in 16-, 19-, 52- and 57-AcrossCOREBUSINESSCompany's main activity, and a hint to a different three-letter abbreviation hidden in 19-, 27- and 37-AcrossDRIVETHRUMcDonald's window (Note the last 2 letters of this answer + the first 4 of 19-Across)