Purple People Eater

The one eyed, one horned, flying purple people eater is an extraterrestrial known for consuming purple-hued people.

Biology
Contrary to what its name might suggest, this species isn't necessarily purple in coloration, but actually feeds on "purple people". Individuals of this species possess a singular eye and a singular horn on their heads, from which they can produce rock'n'roll music; suggesting that the horn is more akin to a musical instrument. They're capable of flying as well as climbing trees, and they speak with high-pitched voices. They're unwilling to pursue prey they regard as "tough", suggesting that they might not be very strong physically.

Culture and society
This species apparently enjoys tequila and wearing short shorts.

Appearances

 * "The Purple People Eater", song by Sheb Wooley (1958)
 * Purple People Eater, film (1988)
 * Dirk Gently's Holistic Detective Agency, S2E4 "The House Within the House", series (2018)