Katy Perry Wardrobe Malfunction: Singer Is Hiding Something In Her Bra (PHOTO)

Strapless bra? A bit of tissue? Katy Perry arrived at the Chateau Marmont last night with a little bit of something peeking out of her dress.

This may in fact be Perry's first (real) wardrobe malfunction. The "Part of Me" singer recently showed off a little too much in a skintight nude body suit and came close to falling out of her gown earlier this year, but has yet to actually fall victim to a full-blown wardrobe malfunction -- until last night.

Partying with the likes of Justin Bieber and Robert Pattinson, Perry arrived at Hollywood's Chateau Marmont for the after-party following the L.A. premiere of her 3D concert film "Part of Me."

The 27-year-old singer wore a strapless black dress with royal blue polka dots that hung a little to low, showing off either a hint of her strapless bra or perhaps tissue wedged between breasts.

Whether the tissue could have been there to give the singer an extra push-up -- which she really doesn't need -- or to add some comfort to what looks like a hot car ride, is anyone's guess. But really Katy, you had to know that was sticking out.

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