When the 'Right Where You Want Me' singer was asked why Jennifer had pulled out of her new movie 'Dallas' he responded: "She didn't get fired. She's pregnant."

As soon as he realized what he said, the 19-year-old turned to his personal assistant and asked: "Was I not supposed to say anything?"

J.Lo - who is married to singer Marc Anthony - recently admitted she is desperate to start a family and had started eating spinach to make her more fertile.

On her doctor's recommendations, the Latin star has allegedly been eating the leafy vegetable three times a day to boost her intake of folic acid and increase her chances of conception.

She said: "Since my doctor recommended it I've been on spinach omelettes for breakfast, spinach salad for lunch and sautéed spinach with every dinner.

I guess if the spinach doesn't help me conceive, I'll still end up with Popeye-sized muscles."