George's Clooney sweetheart, Stacy Keibler, showed some skin by mistake in her eye-catching romper at Grand Prix in Monaco on Sunday.

The doll-faced actress and model, 33, brought sexy and relaxed casual in a red, belted romper showing off her toned arms and legs, and a glimpse of her pink G-string underneath, according to US Weekly.

Photo HERE.

While shutterbugs snapped away, Keibler posed happily at the swanky and luxe French Riviera city-state, but was unaware of her wardrobe malfunction. Photos revealed that the romper had a busted side zipper at the waist line that showed the former pro wrestler's pink undergarment.

But the underwear slip didn't appear to dampen her spirits. With Clooney off shooting the "The Monuments Men" somewhere else in Europe, Keibler indulged in the weekend's glitzy festivities. She tweeted about all the excitement around her.

But the excitement does not end there...check out a sneak peek at star-studded "The Momunments Men" below!