How to add a banner/image view on top of UINavigation Bar

I wanted to know if there's a way to add some sort of image view on top of the navigation bar. I don't want to co开发者_高级运维ver it, rather, I just want to move the bar down in order to make room for a banner. The myspace app displays a bar right above their navigation bar, and so does the bank of america app. Any ideas?

See here - substitute the UITabBarController for a UINavigationController.