Songkick There are a lot of options for listening to music on your smartphone, but sometimes it's nice to hear your favorite band live. But there's no need to Google all the concert schedules. Songkick will help you identify when your favorite bands are coming into town. Songkick searches your music library and creates a custom concert calendar. It alerts you when new concerts are announced, so you can be sure to get tickets before they sell out. Buy the tickets straight from the app and use Songkick to invite your friends. If you want to see Lady Gaga, you'll know when she's playing at a venue near you. The free app is compatible with iPhone, iPod touch, and iPad, but requires iOS 3.1.3 or later. It is available on Android as well. --Written by Katie Roof in New York.