Duff McKagan Responds to 'Simpsons' Duff Beer Name Controversy

Play video content TMZ.com Duff McKagan's responding to "The Simpsons" name controversy ... saying he really doesn't care even if they did use his name -- but, he still thinks the connection's obvious. We caught up with Guns N' Roses rocker in L.A. Friday and asked him about OG 'Simpsons' writer-producer Jay Kogen telling us the show's premier beer -- Duff -- isn't named for him ... instead, it's named after…