Chris Martin may be dealing with his heartbreak by releasing new music , but it seems two can play at that game. Gwyneth Paltrow did some crooning of her own on Monday night, surprising a country crowd at The Roxy. The audience was there to see Jason Isbell with opener Holly Williams . Holly said “It’s awesome to have Gwyneth onstage with me. She’s such a talented singer, which you know if you’ve seen the movie Country Strong.”