By DAILY MAIL REPORTER Singing sensation? Gwyneth Paltrow reminds us that she's now a music star in a new rock-inspired photoshootShe's an Oscar-winning actress, mother, runs a lifestyle blog and has released her own cookbook.Most would say Gwyneth Paltrow is quite the over-achiever. So why is the 38-year-old moving in on husband Coldplay rocker Chris Martin's turf?After a film about a country