Both Williams and Bedingfield have suffered illnesses of various kinds over the last few years - Robbie's addictions and mental state have been widely reported. Daniel of course suffered a major car accident in New Zealand a few years ago, which resulted in some serious injuries. As a result, his voice has apparently changed from the famous falsetto we all remember to something more "gritty" and "less controlled" - sounds to me like a wholesale change there then. He is also famous for his hyperactivity, but the accident has led to him taking things a lot more easily recently according to reports. So his third album could be interesting indeed...