What is a good wish?????????????????

Hey, my friend has the ability to do a wish because she was really sick. She doesnt know what to do. what do you think? she can do anythign in the world and hse doesnt want it to be stupid. she is 16 so please no "dora" wishes. She loves the Jonas Brothers, Selena Gomez, Taylor Swift and Demi Lovato. She doesnt have a fave tv show, and she thinks trips are boring. i dont know what to tell her.....HELP :) thanks so much