The Yezidi worship Lucifer.
Lucifer is simply a name for the 'morning and evening star' VENUS. The seven angels worshiped by the Yezidi are nothing but PLANETS! Planetary worship preceded all other religions.
Basic teachings and Beliefs of Yezidism: Yezidi beliefs are a complicated mixture of Islamic and Zoroastrian beliefs, with Gnostic, Jewish, and Shamanistic elements. Worship centers around Angels (Malek is from the Arabic word for 'angel'), the most important of which is named Melek Taus, or the "Peacock Angel," also known as Lucifer. Lucifer plays a different role in Yezidism, where he is considered the chief Archangel, and the creator of the material world. In Yezidi belief, Lucifer is not a fallen angel, or the enemy of God. In Yezidi cosmology, the universal Spirit (the Supreme deity) created a pearl, which became broken after a period of forty thousand years. Melek, or Lucifer, used the remains of the pearl to create the material world. After this creation, the Spirit created the remaining Angels. Yezidi theology claims that Lucifer was forgiven for his transgressions, and those who revere him are the spiritual elect of humanity. They are forbidden from referring to him as Satan.