Two weeks back an insider told Us that John Mayer had dumped Katy Perry. Cheers were heard. Fast forward to this past weekend where everyone sighed after fans put up pictures of John and Katy at the FYF Fest in downtown LA at M83′s set. The two posed in the VIP section of the festival and were seen dancing together and kissing. Another picture showed John’s arm around Katy. That one was posted by an intense fan who wrote, “FECK @people! U said John Mayer and Katy Perry weren’t together. LIES!” Yikes. She seems like the kind of girl who’d stab you in the chest in the middle of the night because you said the grilled cheese sandwich she made tasted a little salty.