At first glance I thought Matt Munro was Tony Blackburn. Anyway, I think this might have something to do with duets because, as a great Peter Gabriel fan, I know he wanted Dolly Parton to duet on 'Don't Give Up', but she turned it down and Kate Bush did it. Bowie has collaborated with quite a few people, and I reckon Monro has too, and also Kenny Rogers and Matt Monro both worked with George Martin. I don't think Bowie or the lovely Miss Bush ever did.