Finally it is possible to queue up songs in iTunes, this has been a missing feature.
In iTunes 8.1, the Party Shuffle feature introduced in April 2004 has been rechristened iTunes DJ. While this feature has been around for some time, Apple added some new functionality specifically designed for iPod touch and iPhone users.
The new iTunes DJ features lets iPhone and iPod touch users vote on upcoming tracks.
With iTunes DJ, iPhone users that have Apple’s Remote application installed can request songs to be played. Users can also vote to control when songs are played. The DJ feature even has its own preferences, so you can send a welcome message to users and control whether voting is turned on or off. You can also require users to type in a password to access iTunes DJ’s features.