Beyoncé serenades Jay Z with anniversary song, 'Die With You,' available on Tidal

Well, here's a sample of the exclusive Tidal content Jay Z was talking about.Beyoncé released a video of herself this weekend -- nothing fancy, just the singer at a piano, hair in pigtails -- singing to her husband, Jay Z, to commemorate their seventh wedding anniversary. The song, "Die With You," was released on Tidal, the new streaming service they co-own with Rihanna, Madonna, Calvin Harris, Alicia Keys, Jack White, Arcade Fire, Deadmau5, Coldplay, Daft Punk and Usher. At the end, Jay turns ...