Top 12 Hollywood Celebrity Wardrobe Malfunction!

Anne Hathaway: While exiting a car at the premiere of her film, Les Miserables, in New York City, Hathaway unwittingly let the world know that she doesn't always wear underwear.

Pop star Britney Spears is no stranger to panty flashes! This one was taken in 2011, in London

In 2007, actress Jessica Alba was shooting a Revlon commercial in L.A. when... this happened.

Why would Kanye West's pants be undone while getting out of a car with Kim Kardashian?

In 2010, actress Katherine Heigl was accepting the Female Star of the Year Award at ShoWest when her dress came undone, nearly exposing her breast.

While having fun at a water park in 2012, singer Katy Perry had a rather unfortunate (for her, anyway) wardrobe malfunction

In 2012, singer LeAnne Rimes was at the NOH8 Campaign's 4th Anniversary Celebration in L.A. when her right breast popped out to say, "Hello!"

While performing on Good Morning America in 2011, singer Nicki Minaj let it all hang out

American Olympian swimmer Ricky Berens split his suit while diving into the pool during a meet in 2012.

Kim Kardashian.: Underwear is advisable when you're wearing a transparent skirt.

While out and about in 2010, Jersey Shore star Snooki wore a skirt so short that we saw way more than anyone wanted to see.

At the 2012 Emmy Awards, actress Sofia Vergara's dress split down the backside. Thankfully, her stylist was able to sew her back into the dress so that she could continue onto the stage to collect her award with her castmates on the hit show, Modern Family.