Knightley admits she has a limited taste in music, but enjoys the fresh perspective that being romantically involved with a musician, gives her.
"I am not someone who listens to a lot of music. But I get wonderful perspective by being with someone who is less like me than more like me. The way he thinks is something I don't get. We come at things from totally different angles," she said.
The couple has been dating since February 2011.