Cosmic Wings

Cosmic Wings are a vanity item for Diablo III, added in patch 2.4.1. They drop from Princess Lilian in Whimsydale (not in Whimsyshire).

When used, they apply or remove a pair of butterfly wings with deep reflection of a cosmic sky.

When obtained, they can be added to the Wardrobe. Only one set of Wings can be used at a time. If equipped, they will be visible even in character selection screen.

Trivia

 * "Music of the spheres" is a philosophical concept that regards the movement of celestial bodies as a form of music.
 * The Galactic wings are very similar to the Cosmic Wings in appearance, but instead they have a more demonic look with an orange and green hue.