ROCK AROUND THE WORLD SPECIAL SITEstreaming goodies
I'm guessing this is the surprise that was mentioned for those who couldn't attend the live in Misato, Saitama! The actual live itself won't be streamed, but tune in to the site at the times listed (13:30/17:50) to see what they'll broadcast.
If you're not sure what time it'll take place in your timezone you can convert
here~