Katherine Fox also says she helped nurse the singer before the emergency services arrived
Singer will remain in care as a "precaution for observation" says spokesperson
Singer airlifted to hospital following motoring accident on M1
'Careless Whisper' singer reportedly treated for emotional anxiety issues
Singer apologises to fans on his official website as he seeks treatment
Singer was accused of playing his new track 'White Light' for promotional purposes
Singer spoke with country burr after pneumonia battle, he reveals
Singer has said his new single was inspired by his battle with pneumonia in late 2011
Singer tweets that he's written 'a blinder' of a new track