One day after Us Weekly exclusively broke the news that Jack Osbourne is engaged to aspiring actress Lisa Stelly, the 25-year-old director's sister gave her seal of approval via Twitter.
"I guess you're not my little brother anymore," Kelly Osbourne, 26, wrote. "I'm so unbelievably proud of the man you have become! I'm so happy for you and Lisa!"
This will be the first marriage for Jack, who first rose to fame in 2002 through his family's MTV reality show, The Osbournes. Since then, the slimmed-down and sobered-up star has spent more time behind the camera. In 2010, he directed the music video "Life Won't Wait" for his rock legend father Ozzy Osbourne, 62.
Jack also produced a documentary about his father in 2011 titled God Bless Ozzy Osbourne. Working alongside directors Mike Fleiss and Mike Piscitelli, the film tells his father's life story through Jack's eyes.
"There's never been a documentary like this about my father," Jack told Us at the film's NYC premiere in April. "It's not your typical 'documentary' that you're going to see on MTV or anything like that."
God Bless Ozzy Osbourne will be released on DVD and Blu-Ray Nov. 15.
