The King of Rock bought the two aircrafts in 1975 and designed the aircrafts' interiors. The first aircraft, named after his daughter Lisa Marie, is equipped with bedrooms, a conference room and entertainment room. The plane is emblazoned with Elvis's motto "Takin 'care of business." It was last in flight when Priscilla Presley flew from California to Elvis's funeral.

The planes have previously only been available to view in Elvis' Memphis home, Graceland. They will be auctioned in Julien's LA sale room and are set to break records for music-related artefacts.

The bidding started last Friday and the auction is expected to close on February 2nd.

Learn more about the aircrafts by watching this video!

[youtube id="R6rwsoWYNIk"]