MEMPHIS, Tenn. (AP) - For the past three decades, tourists from around the world have paid money to look at two airplanes once owned by Elvis Presley at Graceland in Memphis. By April of next year, the planes could be gone.

Elvis Presley Enterprises, which operates the tourist attraction, has written to the planes' owners saying it wants the jets, named Lisa Marie and Hound Dog II, removed from Graceland in late April 2015. The planes were sold after Presley's death and were eventually purchased by OKC Partnership in Memphis.

OKC Partnership and Graceland agreed to bring the two jets to Graceland, where they have been a popular tourist attraction since the mid-1980s.