Heidi Klum Poses in Cat Ears: Look Back at Her Best Halloween Costumes (GALLERY)

Talk about picture prrrrfect.

Heidi Klum is clearly looking forward to Halloween, as she’s already posted photos of herself in costume on her Twitter page.

The Project Runway host, 39, treated her fans to a selection of snaps in which she’s sporting black cat ears and striking some fierce feline poses.

Unfortunately, she wasn’t giving a sneak peak of this year’s costume —but instead was sharing a peek at a past photo shoot. “Photo blast from the past: baaad kitty,” she tweeted.

So what will she be dazzling her fans with this Halloween?

Klum is famous for her imaginative outfits, which are usually in stark contrast to her polished runway looks.

The fun-loving model — who goes all out for her annual Halloween bash — has donned some crazy and intricate costumes in the past, including a transformer, an ape and even a biblical apple.

Though Klum has yet to reveal what she will morph into October 31, there’s no doubt her trick-or-treat guise is already in the works. So until her big reveal, Celebuzz is reliving Klum’s past Halloween looks.

Which is your favorite? Weigh in below!