Elvis Presley

#10. It was widely believed that Elvis' first and only trip to the UK happened in 1960, when the plane carrying him home from his military tenure in Germany stopped to refuel at Glasgow Prestwick Airport in Scotland. When word got out that Elvis may have spent a day in London   with British rocker Tommy Steele back in 1958 (a story confirmed by Steele in 2008), officials at Prestwick Airport refused to believe it — they had already commemorated Elvis' stop-over with a plaque, and had erected an Elvis-themed lounge in honor of the event. "As far as we are concerned, until it is proved otherwise, Prestwick Airport remains the only place in the United Kingdom that Elvis Presley ever set foot," said airport executive Mark Rodwell in 2008.

#9. Elvis only made one commercial in his entire career, singing the jingle in an ad for Southern Maid Donuts in 1954. According to the company itself, the lyrics were as follows: "You can get them piping hot after 4 p.m., you can get them piping hot, Southern Maid Donuts hits the spot, you can get them piping hot after 4 p.m." (Since his death, however, Elvis' likeness has appeared in numerous advertising campaigns.)

#8. At a 2009 auction in Chicago, a lock of Elvis' hair from collector Gary Pepper's personal collection fetched $18,300 . The hair itself wasn't DNA tested, but the clippings were deemed authentic by a celebrity hair "expert."

#7. Elvis kept a grocery list of items that were to be stocked at Graceland at all times. Among the consumables to be kept in his house were cigarettes, cigars, pickles, one case of Pepsi, banana pudding, Dristan, lean bacon, shredded coconut, six cans of biscuits, sauerkraut, and a gum called Feen-a-Mint with laxative properties.