Periscope is a new live video streaming app… (acquired by Twitter)
This app is available for free on the App Store (Apple).

The Backstreet Boys recently joined it and streamed from the BsB soundcheck parties, concerts, after parties and even while at the airport or at the bowling alley!!
Brian joined this “communauty” yesterday… and made a “test” live stream while at the airport 🙂

Note that you can’t save the videos… and the videos stay available for 24hours only!