In a recent conversation about his post Zeppelin vocals, Robert Plant said the work he did with Zeppelin, '...kicked ass' and added 'I used my voice sometimes kind of like an instrument, like a psychedelic scat or whatever it was. I pushed the range up more and more as I went on... But when I started working in a different time, I found that a lot of that stuff was a cliche... So I was glad to make the departure. The former Zeppelin front man says he finds his current group Sensational Space Shifters gives him to take a different approach that is still high energy.