"There may be a few cows or sheep in the German countryside with a very sore head," says U2 frontman
Singer and friends were travelling from Dublin to Berlin for music awards
The drummer also compares the release of 'Songs Of Innocence' to George Orwell's '1984'
The frontman calls the controversial iTunes album giveaway "one of the proudest things for us ever"
Band will appear at Glasgow ceremony on Sunday (November 9)
The frontman professed his love of the track in a new interview with Rolling Stone
Adam Clayton hints at 'acoustic' and 'explosive' shows to reflect 'Songs Of Innocence' album
The singer also reveals to Rolling Stone that he once told Steve Jobs to 'go fuck yourself'
Band performed 'Volcano' and 'Every Breaking Wave' live on BBC 2 last night
'Songs Of Innocence' was released physically on October 13