Just three, eh? Well I shall try to keep the list short.
Opera Singer - This has been my dream job since I was a really little kid. I would absolutely love to sing at the Metropolitan Opera or La Scala. I know turning something I love so much in to a job could potentially back fire, but it still sounds amazing.
Record Executive - I would love to run or own my own record label. I have had the idea of starting my own independent label stuck in the back of my head for years now. I will probably never do it, but I would love it!
Politician - Running for public office is something I have day dreamed about since I was in middle school. Sadly, I don't believe this will ever happen. I would probably be better working on someone's campaign, behind the scenes.
Those are the top three then there's a writer, an attorney, pin up girl, burlesque dancer, anthropologist, model, and a journalist (likely a music critic).