The rapper has been known to go on rants against the reality TV mogul's shows such as 'The X Factor', but has respect for him because of his personality and achievements in pop music.
He said: ''I don't actually dislike Simon Cowell at all, I think he's wicked. He's smart, he's on the ball, he's fair. So yeah. I like him, from what we know of him. Everyone wants to hate him, it's so obvious and boring. He went bankrupt, he had a hit with [novelty pop act] Zig and Zag, look at him now, he's a genius.''
Green - real name Stephen Paul Manderson - has had a re-style of his image since rising to fame, and although he is pleased with his new haircut, he doesn't like the effort he has to go to in order to care for it.
He added to Q magazine: ''It's given me a new aura. Using a hairdryer does make me feel like an absolute tart, I'm not going to lie. I use the standard nozzle on my hairdryer though, I'm not that into it.''