Arcade Fire will be joined by special guests during the live webcast of their upcoming concert at Madison Square Garden in New York.

The gig, on August 5, is set to be broadcast on YouTube as part of a new concert series dubbed Unstaged.

Fans will be able to watch live as the Montreal-based band play songs from their forthcoming album 'The Suburbs'.

Viewers will also be able to switch camera angles and select a song for the band to play during the encore.

As previously reported, the concert is due to be directed by Monty Python star Terry Gilliam.

Arcade Fire are also due to perform at Madison Square Garden on August 4. 'The Suburbs' is released on August 2.

(by Jason Gregory)