Ms. Cupcake is the gender-swapped version of Mr. Cupcake. Ms. Cupcake makes a cameo in the theme song of the episode "Fionna and Cake." She briefly appears again in "The Prince Who Wanted Everything."
Ms. Cupcake looks very similar to Mr. Cupcake, except with small gender-related differences. She lacks his mustache and pink nose, she has pink sprinkles on her head instead of blue sprinkles, and her wrapper shows a bit of cleavage.