Jack Osbourne has popped the question to his girlfriend Lisa Stelly.
The 25-year-old reality TV star – son of rocker Ozzy – asked the model and aspiring actress to marry him and she announced their engagement on Twitter.
"The most amazing man I've ever met asked me to marry him... and he wasn't joking! Crazy, right," she said.
Jack – who has previously been linked to Taylor Momsen and Kimberly Stewart – rose to fame nearly ten years ago when he and his sister Kelly starred alongside their parents Ozzy and Sharon in an MTV reality show.
He has since appeared in several reality shows and has also done work behind the camera.
Jack directed Ozzy's music video for the song Life Won't Wait in 2010 and earlier this year produced a documentary about the Black Sabbath rocker, God Bless Ozzy Osbourne.
It has also been reported that Jack is training to become a policeman.
He trained as a reserve police officer for reality show Armed And Famous in 2006, but has apparently been returning to patrol the streets of Muncie in Indiana on a regular basis.
On July 1, he posted a picture of himself on Twitter in a police uniform, with the caption: "Another day at the office."
A friend of Lisa's told Us Weekly Jack is "a great influence on her," adding: "It's just no drama. More stable."