Talking to Now magazine, the 'Puakenikeni' hitmaker said: "It's satisfying to play him stuff and for him to say, 'it's really good babe', and it makes me teary-eyed because he has such a great ear."
We can only guess what he made of the whole 50 Cent guest rap on 'Right There' fiasco.
While Hamilton is a fan of his girlfriend's music, he isn't a fan of her driving. "I think Lewis would rather be behind the wheel than me," she explained. "I have kind of a heavy foot because I'm always late for everything so I'm always rushing around."