No secret here: Google and YouTube, arguably the two most powerful entities on the web, are way, way behind in the live-streaming video space. While they've lagged, UStream and Livestream -- to name just two companies in a rapidly-evolving niche industry -- have made live broadcasting an everyday part of most bands' digital arsenal.

30 MORE PHOTOS: U2 at Gillette Stadium, September 20, 2009. Credit: Richard McCaffrey.

If you happened to take a cigarette break on the north concourse of Gillette Stadium last night, about a dozen songs into U2's US-tour kickoff, you might've noticed two young men who were not acting like everyone else.

Stay tuned to this post for live updates throughout the next two days from our embedded source who's headed to the secret U2 show tomorrow, as well as updates from around the web.

Wed March 11

4:59: @02144now says 10,000 expected to congregate in Davis Square tonight

4:45: @atu2 sez: Now inside rehearsing "I'll Go Crazy If I Don't Go Crazy Tonight

4:30 pm: U2 has arrived at the Somerville Theater.

More after the jump...

Our sources tell us that U2's secret Boston show will take place March 11 at . . . the Somerville Theater.

The band previously announced a three-city mini-tour of small venues, including LA, Chicago, and Boston. Tickets have been given away by local radio stations -- including WFNX, which gave away its last pair this afternoon -- but the venue has up until now been a closely-guarded secret.

Having given a few cursory listens to the new U2 record, No Line On the Horizon, we feel confident in concluding that it is not a masterpiece. We'll hold off on calling it a dud until we've given the record the chance to do that odd thing which records tend to do even in the age of instant interweb leaks: grow on you.