Following in the footsteps of Kate Hudson and Owen Wilson's repeat breakup are Jessica Simpson and John Mayer. The two singers have called it quits - for what seems like the hundredth time. After a split last month, which was followed by an apparent reconciliation just a few days later, friends of John say it's definitely over now. However, an insider tells In Touch they wouldn't be surprised if the volatile twosome got back together. You don't say? Check out this week's In Touch for all the back-and-forth details.