Keith Richards calling Led Zeppelin 'hollow' in an October interview (story) has not provoked any retaliatory remarks about him or the Rolling Stones from Zeppelin's guitarist. Asked about that comment and other negative remarks about Zeppelin that the Stones guitarist made during an interview with Rolling Stone magazine, Page replied, 'I think he's done some amazing work. I respect his playing', and then added, 'I'm not sure what he means by calling Led Zeppelin hollow. I think he's got his tongue in his cheek. What we did was really cool'. Not according to Keith, if he's being honest. Richards also contends that Robert Plant did not find his vocal chops until he started working with Alison Krauss.