just let it be, the songs are totally different to ordinary listeners. the U2"s go Crazy its not a good song, Black eyed peas is even worse... although, the will i am band made their song very, very inspiring to common people, i heard it on dozens of graduations and tv shows... but U2 still cant do this in their songs now. anyway this situation is better if i hear u2 has knowlege and agreement with this borrowing.