It was the biggest night in Hollywood and everyone attending the Oscars definitely brought their A-game.

Unlike the Grammys, the stars opted for simple gowns that didn't leave viewers wondering about a potential wardrobe malfunction. However, at the Oscar after-parties the A-listers definitely went all out ... specifically in the cleavage department. Check out the hottest, most revealing and overall jaw-dropping gowns that didn't grace the red carpet at the 2013 Academy Awards: