Answers in comments. Did you guess them all?

Going clockwise; 1. Hot hot hoottt 2. Its coming right for us! 3. Cartman scream 4. Jakovasaur 5. I didnt hear no bell 6. What what whaaatt? 7. Screw you guys, im gewing hewm 8. I would be so happpy and the middle one is the guitar strum.