To mark the worldwide release of Songs Of Innocence on CD & Vinyl, the band will be on Facebook - answering your questions.

So what do you want to know? What have you always wanted to ask?

Add your questions in the comments below this Facebook post, then check back on Tuesday to to see the band on camera with their answers.

The physical release of Songs of Innocence on October 13th comes in three formats which are available for pre-order here and through Island Records, and U2.com (Take a look at the cool bundle offers just launched - Songs Of Innocence Deluxe CD set & T-Shirt ).

Pre-order digital here.

Deluxe, 2 CD Format which comes with 2 x 16 page booklets, the 11 track album on CD1 plus additional tracks on CD2 including a 6-song acoustic session along with Lucifer's Hands, The Crystal Ballroom, The Troubles (Alternative Version) and Sleep Like A Baby Tonight (Alternative Perspective Mix by Tchad Blake).

2 LP 180gram White Vinyl Format featuring the 11 track album on sides 1, 2 & 3 with bonus track The Crystal Ballroom 12" Mix on side 4.

Single CD Format with a 24-page booklet along with the 11 track album.