Remembering the King: Elvis Presley died 40 years ago today

A look back at the "King of Rock 'n' Roll."

Presley was the first rock 'n' roll superstar, whose charisma, energetic music and good looks helped make him one of the most influential and recognizable cultural icons of the 20th century.

Presley 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 No. 1 singles on the Hot 100. Various successful posthumous Presley albums, including compilations, rarities collections and more, continue to be released.

After Presley's death, Graceland became a huge tourist attraction. The property recently was expanded to include a huge entertainment complex with museums, eateries and a hotel.

In observance of the anniversary of Presley's passing, Graceland is hosting an expanded, nine-day edition of its Elvis Week celebration that kicked off Friday, Aug. 11, and runs through Saturday, Aug. 19. Today's scheduled events include the "ELVIS: Live in Concert 40th Anniversary Celebration," taking place at the FedExForum in downtown Memphis.