The Mermaids are characters from the cartoon series The Amazing Adrenalini Brothers. They appear in "Tails of Longing".
The mermaids dwelled in an underwater palace at the bottom of an unknown sea. Despite the castle's beauty and the mermaids' gentle appearance, the kitchen is filthy and the mermaids themselves are cruel, selfish and lazy. They enjoy using their haunting singing to lure people to their doom.