Ashlee to Say 'I Do' Saturday

Ashlee Simpson and Fall Out Boy bassist Pete Wentz will wed Saturday in a rush-to-the-altar "top secret" wedding, Us magazine reports. "Proper invites have not been sent out, but instead guests have been given a save-the-date notice," a friend of the couple told the glossy. The magazine reported earlier that Simpson is pregnant, but she won't confirm. (More celebrity engagements stories.)