We already have the details, but now we know who will be putting them all together. Terry Gilliam — best known for his work as a member of the Monty Python comedy troupe and as director of such films as Brazil, 12 Monkeys, and, most recently, The Imaginarium of Doctor Parnassus — will oversee the YouTube webcast of Arcade Fire‘s August 5th performance at Madison Square Garden.

The performance, which is said to be featuring “special guests,” will be broadcast live, starting at 10:00 PM EST via a special YouTube channel. Viewers of the webcast will have the ability to select multiple camera angles as well as submit photos of their own “suburbs,” which may be featured on stage during the band’s performance of one song.

The broadcast will officially kick off “Unstaged,” a new online concert series being launched by American Express and streamed on YouTube. It’s the first in a planned series of five live streamed concerts, with John Legend and The Roots to follow. Others will be announced later.

In other news, Arcade Fire has a new album due out on August 3rd. It’s quite good.