Tim Davis will want to take some credit for the discovery of singer Leslie Feist, known just by her last name. But the reality is that until she showed up in that iPod Nano ad, singing "1234," nobody knew who she was. Since that spot started airing nationally, Feist and "1234" are bona fide hits. And once again, radio has had little – if anything – to do with it. And as the incessant Danny Buch emails keep telling us, Old Navy ads are making a star of Ingrid...







