LeAnn Rimes and Eddie Cibrian have tied the knot.

The surprise wedding on Friday night was a small, intimate ceremony in California, witnessed by approximately 40 friends and relatives, according to People.com.

"LeAnn and Eddie were happily married...surrounded by their closest family and friends," said a spokesman for the bride. "They thank everyone for their well wishes."

The day after her wedding, Rimes tweeted: "Eddie and I are overwhelmed by the amount of lovely well wishes. We are blessed and.... I'm Mrs. Cibrian!!!!! So wonderful to wake up as husband and wife. Love to all of you."

Cibrian's sons from his first marriage (Mason, 7, and Jake, 4) were among the guests, who had all been invited to a party on the premise of celebrating the couple's engagement. Instead, on a private Malibu property overlooking the Pacific, the country singer and the actor exchanged marriage vows and wedding bands.