Some time ago I bought Gavin Friday's Shag Tobacco on which Bono and Edge are doing some backing vocals. It's a great record, very hard to find these days, but I highly recommend you to get it! You can hear some U2 90's stuff influence, the highlights are definitely Caruso, Little Black Dress, The Slider, You, Me & World War III and The Last Song I'll Ever Sing (this is the one Bono regrets he didn't write himself!)