I had a dream last night that a big cat (don't think it was lion, maybe a leopard or tiger), had my head in its mouth and was clamping down on me. Actually, I was in a stadium and a friend I don't recognize was waving to me from the other side. Warning me. I saw the cat and tried to duck one way, started scrambling up the side of the wall behind some seats, but it got me and chomped my head. I didn't move because I didn't know what to do. My friend ran away and didn't get help, 'cause I was stuck like that for a long time. I tried to wrestle the cat off my head as it teeth sank deeper into my skull. I finally managed to wrestle its paws off of me, flip it over and ran like hell. I woke up in a cold sweat at 2:15 this morning. I went back to sleep, but had reoccurring thoughts about the dream. Somehow, I went back to sleep. I woke up this morning with Katy Perry's "Roar" stuck in my head. Explain.