Emma Watson: The Harry Potter star accidentally flashed her undies at the premiere of ''Harry Potter the Half-Blood Prince' premiere.
Whitney Houston: Houston's comeback performance at X-factor turned nasty when the strap of her silver dress snapped open during her performance of ''Million Dollar Bill.''
Britney Spears: The pop star revealed a little more than usual during a show in Tampa. She complained offstage during a wardrobe change that she had been exposed minutes prior thanks to a high-cut leotard.
Nicole Kidman: The Hours star stunned onlookers at the CMAs when she walked the carpet in a shockingly tight Fuchsia dress and white powder all over her face at the NYC premiere of her new flick Nine.
Kate Moss: Kate Moss left the Yves Saint Laurent Spring/Summer 2010 show in Paris on October 5 forgetting to cinch her trenchcoat a little tighter around her body.
Brad Pitt: The Curious Case of Benjamin Button star showed up for a Paris photo call with his fly down.
Lady Gaga: The pop star had a nipple slip on The Jay Leno Show while performing Bad Romance
Beyonce Knowles: The R&B singer's Oscar performance with Hugh Jackman was family-friendly, but she had an R-Rated moment thanks to a split-second wardrobe malfunction.
Mischa Barton: Former O.C. star was seen strolling the streets of New York City in August, without a bra in a Saran Wrap thin tee shirt.
Tila Tequila: The reality star suffered an embarrassing nipslip on the red carpet while announcing her engagement to Casey Johnson. As she showed off her ring and kissed Johnson for the camera, she came close to losing her top.
Washington (ANI): Actress Emma Watson's wardrobe malfunction at the London premiere of Harry Potter and the Half-Blood Prince has made it to the list of Memorable Wardrobe Malfunctions of 2009. Compiled by Fox News, the list of Memorable Wardrobe Malfunctions of 2009 includes: