Costume designer Marco Marco [1] made magic happen on Instagram this Halloween [2]. In honour of the spooky holiday, "Riverdale [3]" stars Lili Reinhart, Madelaine Petsch, and Camila Mendes tapped Marco for three bewitching costumes that have us convinced the Sanderson sisters have been resurrected once more. "It's just a little HOCUS POCUS [4]," Reinhart captioned photos of their costumes, taken by Cibelle Levi [5].

The friends each strapped into lace-up corsets [6] and miniskirts, which they paired with capes in the Sanderson sisters' signature colours. "Hoecus pocus," Mendes captioned her post [7].

While Marco gave the trio's outfits a sexy 2022 makeover, the "Riverdale [8]" crew did have one detail in common with the iconic witches: their hair colour. Reinhart embraced her inner Sarah Sanderson (Sarah Jessica Parker [9]), letting her blonde waves hang freely over her red velvet cape, which she paired with a miniskirt, fishnet stockings, and a pink corset.

Letting her black hair guide her costume [10] — that updo is like a tower! — Mendes transformed into Mary Sanderson (Kathy Najimy) in a brown lace-up corset with orange sleeves. The top also featured silver hoops that dangled over her blood-red skirt. Like Reinhart, she completed the look with fishnets and a cape.

Petsch rounded out the trio's look as Winifred Sanderson (Bette Midler), the most powerful of the three witches. Wearing her red hair in a heart-shaped updo, Petsch would have made Winnie herself green with envy in her neon-green corset layered over a purple minidress.

Quoting the sequel, "Hocus Pocus 2 [11]," Petsch wrote, "This time if we see a teenager, we kill it." Makeup artist Jen Tioseco [12] and celebrity hairstylist Matthew Collins [13] completed the costumes with bold lipstick and spot-on hairstyles.

See Reinhart, Petsch, and Mendes dressed up in their full Sanderson sisters ensembles ahead, and see more of our favourite celebrity Halloween costumes here [14].