Kate Nash performed a very special Halloween show that any Joss Whedon fan would love: the "Buffy" musical, "Once More With Feeling."

Nash took to the stage in costume as "Buffy the Vampire Slayer" complete with a cross and stakes. Her bandmates also got in the spirit with one in a bunny costume a la Anya.

Watch the band perform "Walk Through the Fire" and "Going Through the Motions" below and click over to BleedingCool.com to see more.

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  • Fat Betty, "Mad Men"

    <strong>What You'll Need:</strong> A blonde wig with a vintage style, a mumu and plenty of padding <strong>Optional Accessories:</strong> An attractive neck band-aid, a purse full of vintage sweets to snack on all night, a phone programmed to play the <a href="http://www.happyplace.com/15425/a-new-mad-men-theme-song-in-celebration-of-fat-betty-francis">Fat Betty remix of Ram Jam's "Black Betty"</a> on cue.

  • Hibernating Max, "Happy Endings"

    <strong>What You'll Need: </strong>A bucket and/or a furry hat for your head, Wayfarers, a beard, a willingness to go shirtless (or don long underwear), an ability to grunt in a dazed and confused manner, a jar of honey. <strong>Optional Accessories:</strong> A unicycle and a trash can to root around in.

  • Kris Jenner With Swollen Lips, "Keeping Up With The Kardashians"

    <strong>What you'll need</strong>: Giant, red toy lips, short black wig, pajamas, harem of friends to act as your bickering offspring. <strong>Optional accessories</strong>: Pack of q-tips to use to swab your daughters' cheeks for DNA.

  • Rubber Man, "American Horror Story"

    <strong>What You'll Need:</strong> <a href="http://shop.fxnetworks.com/detail.php?p=374908&ecid=PID-5580&pa=SEM-GPA&CAWELAID=1562033894&cagpspn=pla">This, and only this</a>. <strong>Optional Accessories:</strong> Honestly? An empty bladder. (Seriously, this can't be easy to get in and out of.)

  • The Shannon/Thompson Clan, "Here Comes Honey Boo Boo"

    <strong>What You'll Need:</strong> For starters, lots of friends to play along. Assuming you have that, start with a variety of tops including t-shirts from local business/agencies, shirts with Angry Birds on them, shirts with sassy sayings and shirts in generic colors. For bottoms, go with jeans, cut-offs or brightly colored shorts. If you want to go pageant wear, <a href="http://www.thebrandur.com/Alana-HONEY-BOO-BOO.html">here are the tees you need</a>. <strong>Optional Accessories:</strong> Forklift foot, sketti, pepper to make you sneeze and double as gnats and/or Glitzy the Pig.

  • "Luck's" Unluckiest Castmembers

    <strong>What You'll Need:</strong> Several friends to gallop around with and a <a href="http://www.fredflare.com/APARTMENT/Horse-Head-Mask/">creepily realistic horse mask</a> for each person <strong>Optional Accessories: </strong>A Dustin Hoffman gangster-type, horse trainers with unintelligible accents, someone with a PETA-stamped "Save The Horses" picket sign

  • Saul Berenson, "Homeland"

    <strong>What You'll Need:</strong> Open-neck shirt with the sleeves rolled up, a lush but neatly trimmed salt-and-pepper beard, sensible Dad glasses, a look in your eyes that is both penetrating and compassionate, sensible shoes. <strong>Optional accessories:</strong> Shades and a jaunty straw hat for field missions, extra meds for Carrie, loaf of Challah bread (to quote Claire Danes at the Emmys: "Mandy Patinkin, Challah!")

  • Purrfect, "The Voice"

    <strong>What You'll Need:</strong> White pants, cat years and a t-shirt with Cee Lo's face on it <strong>Optional Accessories:</strong> A sign that reads: "CAT FOR HIRE," Someone dressed like a pink cockatoo, Someone dressed like Cee Lo (with necessary sunglasses)

  • Sister Jude, "American Horror Story: Asylum"

    <strong>What You'll Need:</strong> A nun's habit, a <a href="http://www.spencersonline.com/product/al-riding-crop-black/">riding crop</a> and a good scowl. <strong>Optional Accessory: </strong>An Emmy award.

  • Dr. Rizzo, "Animal Practice"

    <strong>What You'll Need:</strong> A stethoscope, lab coat, fangs and black nail polish. <strong>Optional Accessories:</strong> Excessive facial/body hair, a banana, an actual doctor to perch on the shoulder of.

  • One-Night Stand Doctor, "The Mindy Project"

    <strong>What You'll Need: </strong>A sequined short dress (ideally in a jewel tone), a white doctor's coat and a stethoscope <strong>Optional Accessories:</strong> A doctor's bag with some stilettos and a condom, A male nurse with some messy hair

  • Ron Swanson At A BBQ, "Parks & Recreation"

    <strong>What you'll need:</strong> Fake mustache, masculine-themed cooking apron, meat smoker attached to your car, toy pig. <strong>Optional accessory:</strong> Bacon to hand out to trick-or-treaters.

  • The Dowager Countess, "Downton Abbey"

    <strong>What You'll Need: </strong>A hat, cane, corset, floor-length gown and stern expression. <strong>Optional Accessories:</strong> Maids, a cup of tea.

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