Rocha Software has Song2Email (iTunes Link) for the iPhone and iPod Touch in the iTunes App Store for FREE (regularly $1.99) for a limited time. Deal expires December 4, 2011.

Song2Email allows you to send songs from your music library to any email address!

Now you can share songs with your friends anywhere you go!

Just choose the songs, select the destination email address and tap “Send”. There is no catch!