Jennifer Lopez stunned the audience at Sunday night's Academy Awards when she appeared on stage with Cameron Diaz in a beautiful Zuhair Murad dress. But what really got people talking was when she leaned over the podium and appeared to bare a nipple.

But Lopez's stylist insists the star did not have a wardrobe malfunction. Mariel Haenn told, "The dress fit perfectly to every inch. While the dress did give the illusion of sheer-ness, (the) joke's on everyone who wishes they saw something!"

She took to the stage with Cameron to present the prize for best costume design and make-up.

Check out more photos of Jennifer Lopez's sexy dress...