Nice photos.
I have been following the story at U2's website.
Here is a news video of Edge and Billie Joe being interviewed.
U2 & Green Day
Here's a link to the song "The Saints are Coming."
The Saints are Coming
Here's a link to U2's website, U2.com, you can read a couple more stories about it there and order a Music Rising T-shirt at the U2.com store. Just click on U2 SHOP at the top, that will get you to the T-shirt.
U2 website
I got my T-shirt there and it's just like the one Edge is wearing in your photos, the money goes right to Music Rising.