Jack Osbourne Is Engaged to Lisa Stelly
09/30/2011 AT 11:10 AM EDT
The 25-year-old son of Sharon and Ozzy Osbourne has proposed to his girlfriend, actress Lisa Stelly, his rep confirms.
As Stelly, 26, Tweeted: "The most amazing man I've ever met asked me to marry him....and he wasn't joking! Crazy, right? :)."
The couple have been dating for four months, reports Britain's Daily Mail.
Jack recently produced a documentary about his father, God Bless Ozzy.
– Liz Raftery and Blaine Zuckerman