Lana Del Rey performs at the KROQ Weenie Roast 2017 at StubHub Center on May 20, 2017 in Carson, Calif.

Lana Del Rey has shared an updated version of a 2008 demo that is featured in Eugene Jarecki's new Elvis Presley documentary, The King.

On Saturday (June 30), Del Rey tweeted a clip of the song, appropriately called "Elvis," which plays over a montage of photos and video footage of the rock 'n' roll legend.

My composition ‘Elvis’

for the new film called ‘The King’ out now directed by Eugene Jarecki pic.twitter.com/k1AqOtPwPz — Lana Del Rey (@LanaDelRey) June 30, 2018

"My composition ‘Elvis’ for the new film called ‘The King’ out now directed by Eugene Jarecki," she captioned the tweet.

The King follows Presley’s ‘63 Rolls-Royce across the country and unravels his legacy in the backseat during the trip.

Del Rey first released the demo version of "Elvis" (listen below) on MySpace in 2008 under the name Sparkler Jump Rope Queen. "Elvis" -- along with other demos “Blue Ribbon” and “Axl Rose Husband” -- were never officially released.