Those are three very tough autographs. Good luck with your quest.

Hi,

I have been trying to get Mick´s autograph for few past years... record companies, publishers, you name it.. No luck so far, and I don´t think I´ll ever succeed, to be honest.
But anyway, I am not giving up yet!!!

I heard that Bono doesn´t sign that much even in person.. but it may be just rumours.

Anyway, if you try, good luck!

Those are three pretty tough autographs to get. Spingsteen almost never signs through the mail but does sign in person. The other two I have not herd much about when discussing autographs