Possibly my most favorite J-rock band in the whole world, Asian Kung-Fu Generation, is live streaming the last concert from their latest tour (that started last September resulting in a total of 75 concerts) on USTREAM on Friday March 25th from 5:30 PM to 6:30 PM JST. That means with the timezone difference, it will be live starting at 5:30 AM EST. IF you want to watch it, you'd better get up early since it will not be re-broadcasted. The concert will be held at Tokyo International Forum.
Based in Yokohama, the rock band first catapulted to fame with their hit single “Haruka Kanata”, the 2nd Naruto opening song. They then followed up with "Rewrite" for Full Metal Alchemist: Brotherhood and "After Dark" for Bleach’s seventh opening. Recently they released "Magic Disk", their 6th studio album last June.
EDIT: It should be 3:30am, not 5:30am as written. Japan Standard Time is (UTC +9:00) and Eastern Standard Time is (UTC- 5:00).