Today, August 16, marks the 40th anniversary of the death of Elvis, who was just 42 when he passed away at his Graceland mansion in Memphis from a heart attack. It’s widely believed that prescription drug abuse was a factor in his death. Elvis, whose charisma, energetic music and good looks, which helped make him one of the most influential and recognizable cultural icons of the 20th century, remains the most successful individual music artist ever, with more than 211 million certified units sold worldwide. He’s scored 10 chart-topping albums on the Billboard 200 and 18 #1 singles on the Hot 100. After Elvis’ death, Graceland became a huge tourist attraction and in observance of the anniversary of his passing, Graceland is hosting an expanded, nine-day edition of its Elvis Week celebration that kicked off last week Friday and runs through this Saturday.