Robert Pattinson and FKA Twigs send out save-the-date wedding cards

Robert Pattinson and FKA Twigs have sent out save-the-date cards for their wedding. The couple - who confirmed their engagement a year ago - have been keeping a low-profile and were last pictured together in November and it seems they have been busy planning their nuptials as they have told friends they will be tying the knot in December. A source told the new issue of Grazia magazine: "FKA hated all the attention they generated as a couple, but they've been keeping a low-profile in East London and she feels more comfortable. Twigs is totally happy with where they are and they're both excited about the wedding." The couple walked the red carpet at the Met Gala last week, and 'Bel Ami' hunk Rob, 29, even introduced the 28-year-old singer to Kristen Stewart, his 'Twilight Saga' co-star who he dated for five years until 2012 eventually splitting from her after she had an affair with her married 'Snow White and the Huntsman' director Rupert Sanders. A source said: "Rob introduced them and they seemed to get along well. Rob and Kristen are on good terms and they're both really happy for one another that they've moved on." It was previously reported that Rob and Twigs - real name Tahliah Barnett - pushed back their wedding because the 'Two Weeks' singer couldn't decide what kind of celebration to have. A source said recently: "She talks about keeping it real and low-key and then wants an elaborate glamorous Baroque affair. She was even talking at one stage about having a masked ball. "It will now be bigger but how big, nobody's quite sure at this moment in time."