Having previously blamed the much criticised free iTunes release of 'Songs of Innocence' as being a "drop of megalomania", Bono has now opted for a more dairy-specific explanation to his detractors.

When all is said and done for this year U2's unconventional album release will dominate the majority of the end of year summaries and lists, such was the magnitude of its release and the resulting brouhaha which enveloped it.

In a new interview with Rolling Stone, Bono admits that he wasn't entirely aware of the specific details of the record's release and was unprepared for the backlash which followed.

"It's like we put a bottle of milk in people's fridge that they weren't asking for", Bono said in the interview. "It is a gross invasion! But it was kind of an accident. The milk was supposed to be in the cloud, it was supposed to be on the front doorstep."

Bono's latest explanation seems to indicate the band regret the manner of the release but, even with all the negativity associated with it, 'Songs of Innocence' will still bag Bono and the rest of U2 a very healthy addition to their already inflated bank accounts.