This is a really fun music industry simulation game. It's only for Windows tho. But you basically play as a label and control artists and have them record and release music and tour and make videos and a bunch of ****, and theres a ton of charts and all that. It's really fun and the creator is some law student and the game cost $$$ but I think the more people that get it the harder he'll work on updates.
Heres the site for it
http://www.wolverinestudios.com/mwr.html