Dave Grohl has a confession to make: the whiskey and beer vocal regime he swore kept his voice healthy was “all a lie”. The Foo Fighters frontman has some big dates confirmed for later in the year in support of ‘Your Favorite Toy’, and recently spoke about the importance of looking after his voice, touching on his supposedly doctor-approved method during a stop on the Dish podcast. He told hosts Nick Grimshaw and Angela Hartnett about a time that he had to get his vocal cords checked out, and revealed that his secret to keeping them healthy was drinking beer and whiskey before a gig . “An hour before the show, I’ll open a beer and I’ll start drinking the beer. I might take an Advil because my knees hurt, my ankles hurt, whatever, I’m old,” he said. “Then I have a shot of whiskey […] then someone will say 15 minutes and I open one more beer and have one more shot. And then hit the stage’.” “And my doctor said, ‘Just don’t change what you’re doing.…