Smith-Peterson broke the news in a post on his private Facebook page Wednesday, writing “So that happened . . . ” alongside a photo with himself of Keough, 25, flaunting a ring on that finger and an appropriately rock-inspired pose.
Friends were quick to offer their congratulations on the post, with one hinting that it had been in the planning stages for a while: “YAY!! Now we can talk about it ; )” Heather Bryse-Harvey wrote.
Keough and Smith-Petersen met on the set of Mad Max: Fury Road in 2012, and became close after Keough split from then-boyfriend Alex Pettyfer, to whom she was also engaged. A model, she was also previously linked to Rob Pattinson and Ryan Cabrera.
A rep for Keough didn’t immediately respond to Radar’s request for comment.
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