Keira Knightley’s husband was a rock star - but she’d never even heard of him
(New York Post Music)

Over the past decade or so, actress Keira Knightley has enjoyed a slow but sure ascent up the Hollywood A-list, with roles in `Pride and Prejudice` (2005), which earned her an Oscar nom, `Anna Karenina` (2012) and `The Imitation Game` (2014). But her husband´s taste of fame didn´t come quite so steadily. Back in 2007,...