The singer gave birth to her and Jay-Z's first child, Blue Ivy, in January 2012
'I've never postponed a show in my life. It was very hard for me,' said the singer
Rumours that the star is pregnant with her second child are currently circulating
Snippet of singer's contribution to 'Epic' soundtrack leaks online
McElderry sings a line at the start of 'Love On Top' - but Beyoncé might not know about it
Singer allegedly insists on £600 drinking straws, freshly painted walls and red toilet paper
Singer's O2 Arena residency continues tonight
Mrs Carter tour begins three night O2 residency
Amy Winehouse's father says Beyoncé should have 'done it all'