The outfit included a yellow dress just like Belle's, a white shoal and gloves, embellished black heels, a very Disney princess statement necklace and a Beast mask.
"Elegant and Lady Like. Confident yet Loving. ? Thats what matters! ? @stevenkleinstudio ? happy Purim!" she wrote on Instagram.
The longtime Kabbalist also shared a pic without the Beast get-up while posing with French photographer JR, who was dressed up in a pope costume. "Sometimes you just have to take off the mask and confess!" she captioned the pic, where she's also holding a rose between her teeth.
Madonna attended the party with her pal, photographer Stephen Klein, who also posted a few pics from inside the celebration.
"The 'IT Couple' Happy Purim to my Princess @madonna," he captioned a pic with the iconic singer. "Love is beyond the masks we wear in this lifetime."