The Australian stuntman posted the news of his engagement to the actress on his Facebook page, sharing a photo of himself with Keough wearing a diamond on her ring finger. "So that happened..." he captioned the picture, which also shows Smith-Peterson shirtless and sporting a huge tattoo of wolves on his chest.
The happy couple met on the set of the Mad Max: Fury Road movie where Keough plays the role of Capable and Smith-Peterson was working as a stunt double, E! News reported. The pair then went public with their romance in January of this year after they were spotted packing some serious PDA in Los Angeles.
Keough, who is the eldest grandchild of the iconic King of Rock 'n' Roll, has not commented on the engagement yet. Before she met her fiancé, Keough dated Alex Pettyfer, whom she costarred with in the movie Magic Mike. She was also briefly linked to Robert Pattinson, although they both denied having a romantic relationship.
Making her screen debut in 2010, Keough starred alongside Kristen Stewart in the film The Runaways, and has since landed several roles for additional movies. For her latest big-screen role she will play Elisa Green in the family drama The Greens Are Gone.
Keough is set to be Presley's first grandchild to walk down the aisle. His other grandchildren are Benjamin Keough and twin daughters Harper and Finley, who are Lisa Marie Presley's daughters with her current husband, Michael Lockwood.
Besides his work on the upcoming Mad Max film, the Kiss of the Damned star's future husband also did stunt-double work on The Hunger Games: Catching Fire.
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