Rhapsody Has Two Mommies

First your computer and now your iPhone, as well. This free app requires a $15 per month fee, but gives you streaming access to over 8 million songs. It has all sorts of options to create playlists, add songs to your library, get information on any song and artist, and much more. You can give it a try for free for the first seven days. To watch a video on its features, click here.