Amid ongoing reports that music power couple Beyonce and Jay-Z are on the brink of divorce, a new wave of rumours claims that the tension between the two has reached new heights. Rumour has it that the 34-year-old singer, who may not be 'crazy in love' with her 46-year-old rapper hubby anymore, broke down at Kelly Rowland's 35th birthday bash and announced she was planning to 'end her marriage.'