the main point is not about beyonce, Janet ,ciara because they all proved them self in one big live performance.
the point is even ciara who got allot of flake because she not a strong singer tried to prove herself vocally.

but Cheryl Cole who is a main judge of Britain biggest singing completion can judge others on their performance & vocals but won't sing live herself it called being a hypocrite.

so you would think that would motivate her to prove herself in a performances but instead she hinds behind pre-recorded vocals & dancers. it’s all good saying you want to be singer but what is the point if you don't even sing.
sing for your fans because they spend allot of money to see you sing live but get ripped off.