As was mentioned in the WWDC 2013 keynote, the forthcoming iTunes Radio will feature a dedicated Twitter #music station. The Twitter #music station will allow users to listen to trending songs that are shared on Twitter with an option to buy the songs via the iTunes Music Store.
But as The Verge points out, iOS already has a dedicated Twitter #music app that is struggling to gain popularity. The agreement between Apple and Twitter to include a dedicated Twitter #music station obviously works out well for both compani