We're not sure what she dressed up as this year, but now we know what Pink 's Halloween costumes were back when she was a kid.  The singer has posted a slew of old Halloween photos on her Instagram account for fans to see.

"Here's some Halloween inspired 'throwbacks' for ya'll:)" she wrote on Twitter, and posted the first of several links to her pictures.  In the first one, she looks about four years old and is wearing a rabbit costume: pink footie pajamas and a hat with bunny ears.  In the next picture , she's a little older, wearing a fairly elaborate clown costume.  "It was pretty fabulous...I was always a clown!" she writes.

That isn't exactly true, though, because in the next picture, she's wearing a white bride's dress, blood-red long fake fingernails and red lips, and making a scary face.  " Not sure what I was going for here.... Started out as Glinda the good witch and went straight to the dark side," she wrote.

In another picture , she's older, and wearing a white shirt, white pants, an oversized necklace and bracelet, plus a sparkly sequined mask.  " This must've been my interpretation of Madonna ," writes Pink.

Another photo shows Pink dressed as a giant piece of chewing gum, labeled "Sugar-Full Bubble Gum."   "Ouch!" she writes.

We can't wait for Pink to reveal what costume she chose for her daughter Willow .

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