iPhone Tabbar Application: Is it possible to add subview inside the tabbar (on top of it)?

Question

i'm working on a uitabbar application and im wondering if its possible to put a view inside it.

my main purpose for this is i 2ill put a semi-transparent music player with about 20 pixels above the tabbar so when the user switches between other views the music play wont stop.

You can see a similar solution in Madonna App (whis is made with Mobile Roadie).

Thanks for helping again. hope someones knows this