U2 in Croke Park

"The only criticism that stung is that the album should have had more of the energy of the musicians and those who inspired it... a bit more anarchy, a bit more punk. We didn't want a pastiche of the era so we put all those 70's and early eighties influence in the juicer and a blend emerged... more like an Irish whiskey than a single malt." - Bono on Songs of Innocence