Steve-O says he's "so happy" to be engaged to girlfriend Lux Wright.
"Last night, in front of a bunch of my Jackass buddies, my closest friends, my dad, and my sister... she said 'yes,'" Steve-O captioned a slideshow of photos, which included a picture of of Wright's ring.
"I planned that for more than six months, and I'm so happy -- I can't wait for you all to see it... #GNARLY @luxalot," he added.
Wright said in a post on her own account that she "can't wait" to marry the Jackass star.
"Last night was the absolute best! I can't wait to spend the rest of my life with you @steveo #yes #duh," she wrote.Steve-O was previously wed to Candy-Jane Tucker and to Brittany Mcgraw.
He told TMZ he popped the question to Wright while filming a comedy special Saturday night in Denver, Colo.
"I want to sell it for said millions, and take the money and open up an animal sanctuary. I would like for us to get married at our animal sanctuary."
Steve-O came to fame on the MTV series "Jackass," and subsequently appeared in the "Jackass" movies.
He is also known for "Wildboyz," "Dr. Steve-O," Dancing with the Stars" and "Killer Karaoke."