Teen star Hilary Duff is feeling burned out after a punishing year which has seen her make three movies, perform a sell-out tour and write three songs for her greatest hits album Most Wanted.
The Wake Up singer is desperate for time away from the spotlight, and was forced to cancel her plans to take a holiday in September because she is in so much demand.
She tells MTV.com: "I think it's the type of exhaustion that like one night of sleep doesn't fix, you know?
"I was supposed to take September off for my birthday, but it didn't happen"