Tbh I always got the impression that Will piggybacked on her fame in the UK and managed to get himself a job on the Voice and a somewhat successful solo career (at least in the UK in the 2010s) from it. Any time he was interviewed he was always asked about her. He produced three or four songs on her first two albums but wasn't involved in any of her biggest hits. He invited her to be the opening act on the Black Eyed Peas tour for the leg in Europe but that was at the peak of her popularity when she probably could've sold out every arena in the UK two or three times over if she wanted. And when he got involved managing her in 2012 she ended up sacking him about 18 months later and signing with Modest. To me he got a lot more out of it than her.Agreed. She was absolutely the most famous due to Ashley Cole and Will.
I agree with you about Ashley though