Rumer Willis attended the Elle Women In Music celebration Tuesday night wearing a cut-out skirt that revealed the actress' pink underwear. Willis' risque skirt featured three large side-holes in the thigh area that displayed her bubblegum lingerie and part of her back side. She paired the item with a black crop top, a bejeweled minaudiere and strappy black sandals. Rumer Willis is the latest star to hit the red carpet in a very skimpy outfit http://t.co/xBkH5YzbL5 pic.twitter.com/d7Bbv0jLLs— 3am (@3am) April 23, 2014 Other celebrities at the event included Cher, Stacy Keibler and Disney's Zendaya. Willis, 25, is the daughter Demi Moore and Bruce Willis. She is best knows for her work in The House Bunny, Hostage and Now and Then.