Beyoncé is notoriously private when it comes to her family life but delighted fans on Monday after sharing a rare photo with her youngest daughter Rumi.MORE: Beyoncé and Jay-Z's megamansion needs to be seen to be believedThe Black Parade hitmaker took to Instagram to share a series of snapshots from her vacation, and it looked liked they were having the best time!In the picture, Beyoncé posed alongside her husband Jay-Z and their daughter while on a yacht at sea. VIDEO: Beyoncé's family enjoy