The so-called "Winter Wonderland Wedding and Music Event" will run for three hours on December 15 for $14.95.
Salahi starred on Bravo's short-lived Real Housewives of D.C. series back in 2010. But she's perhaps best known for turning up uninvited to a 2009 White House state dinner with her then-husband, Tareq Salahi.
Michaele's unusual courtship with Schon began in 2010. Her unsuspecting husband reported her missing and suspected she'd been kidnapped until authorities found that she'd run off with Schon and joined the Journey tour.
Schon proposed to her onstage in Baltimore last year.
"Everyone at the networks wanted to put their own creative spin on the event," Schon said in a release. "Michaele and I discussed it, and we decided to hire a great crew and do the whole thing ourselves because this is really our day. What's surprising is that no one had ever thought to do anything like this before we did."
The two lovebirds will seal their unusual courtship at the Palace of Fine Arts.
"We searched the world for the perfect location, and finally I said to Michaele, 'San Francisco is my home. Now it is our home. I want to be married there, in the most beautiful city in the world, to the woman of my dreams,'" the classic rocker added. "Everyone said they wouldn't let us have the wedding there, but when our wedding planner took my passionate plea to the management, they said yes. We couldn't be more happy!"
Debbie Matenopoulos, Cameron Mathison, and Karyn Bryant will host the event, with a portion of the proceeds going toward Typhoon Haiyan relief in the Philippines.
And yes -- Journey will perform.