Barry Zito is headed to the altar.

The three-time All Star pitcher and his fiancee, 25-year-old actress Amber Marie Seyer - a former Miss Missouri USA - plan to be married this weekend at a private ceremony in Marin County, according to his publicist, Kathy Jacobson.

Jacobson had no word on whether the couple had signed a pre-nuptial agreement, but she did say they planned to split their time between the Bay Area and Los Angeles during the offseason.

Zito and his bride-to-be showed up at the Marin County clerk's office Nov. 18 to take out a marriage license.

"I asked if he wanted a confidential one, and he said 'no,' " said Joyce Whitney, a senior deputy county clerk. "He said, 'Just give me a public one - I'm over myself.' "

As a bachelor, the 33-year-old Zito's love exploits have been well documented - including a brief romance with actress Alyssa Milano. He was once spotted on a date with Paris Hilton.

Zito isn't the only Giants bachelor tying the knot this weekend. His good friend Nate Schierholtz, 27, is getting married on the same day in Texas to his longtime girlfriend, 25-year-old business consultant Kate Eveland.

Which means they won't be attending each other's wedding.