Justin Timberlake Welcome Back at Hotel Where He Drank Before DWI Bust

Justin Timberlake isn't losing any luster in the Hamptons with his DWI arrest -- the posh hotel where he drank before getting busted says the singer's legal issues won't prevent him from getting a table or a room. As we've reported ... JT was dining with friends at The American Hotel in Sag Harbor, NY Monday night before getting arrested for allegedly driving drunk. He told cops he'd only had one martini before…