I want to know the answer to the following question:
Did the FBI keep files on Elvis Presley?
All the background I'm provided with is that "Numerous celebrity files concern threats or extortion attempts against them (Sonny Bono, John Denver, John Lennon, Elvis Presley, Michael Jackson, Mickey Mantle, Groucho Marx, and Frank Sinatra).". Is that enough to answer the question?
Answer: no