somebody I would switch lives with for one day and why

Hayley Williams.  Because Paramore and the bands they tour with seem pretty fun to be around, I would love to spend a day in a bus with them and on a stage with them, and it would get me out of having to drink milk.  Though it would be pretty stressful, it would also be a ton of fun, and I could dye my hair an awesome color without parental consent.  Also, she most likely gets free food.