To her legions of fans, Beyonce's pretty much perfect - but the singing superstar's father and ex-manager has revealed she has one big weakness.
And it's a flaw that may explain her retreat from the public eye in recent years - while her albums sell by the truckload, the former Destiny's Child frontwoman rarely gives interviews nowadays.
Matthew Knowles recently gave a speech on artist management at Howard University, where he spoke about the importance of identifying an artist's weaknesses.
"Everybody thinks that they're the greatest and they should. We as a label executives, we have to know the limitations of the artists. I can tell you all my artists, the limitations," he said, before revealing what Beyonce was no good at - and his other singer daughter Solange excelled at.
"See, I would never have Beyoncé up here public speaking. She's not good at it. Solange was just at Yale. She's incredible at it. But I know all of my artists' weakness. They all have weaknesses."
