Toyota Repair: grinding and bent wheel, model toyota, more detailed information

Question
My car makes a lound grinding noise while driving in the back wheel area.  In addition the wheel itself appears to be bent.  What could this be? I know it is not the brakes.

Answer
If the wheel is bent, you must have hit something, this probably caused the rear wheel bearing to fail, this is all the information I have, I can help more with more detailed information as to how the wheel got bent in the first place and what year and model toyota it is.