Yes same here! His hair looks far too young for his age. Him and Cliff are mates so I wouldn't be surprised if they use the same bloke.
I doubt Mike Read has a wig - he has the thickest hair I've seen on a man his age (65) - although he must dye it.
I've met him a number of times, seen him play tennis, hot and sticky and his hair reflected this.
So wig wearers:
Robin Gibb, Tony Blackburn, David "Diddy" Hamilton, Wogan, Forsythe,
Cliff - not sure, it's thining, but didn't look like a wig when I met him.
Mike Read - no, his own hair
Rod Stewart - always suspicious of his - his brothers are both bald as a coote, but Rod's has always looked the same.