Duff Beer

Last year, former Guns N' Roses and current Velvet Revolver / Loaded bassist Duff McKagan revealed in his autobiography, 'It's So Easy: And Other Lies,' that the iconic 'Simpsons' animated beverage Duff Beer was named after him. McKagan happily agreed for 'The Simpsons' to use his name, but now the bassist has admitted that he regrets not cashing in on the opportunity.