John Mayer Goes Incognito in N.Y.C.
11/04/2011 AT 05:45 AM EDT
He didn't fool us! John Mayer was spotted attempting to go undercover at New York's Blue Water Grill. Looking comfy in jeans and a T-shirt – and sporting shaggy hair and a fedora – the singer appeared hard at work on a computer at a back table. – Lesley Messer