She's an alien (but I prefer 'cosmic cutie') who's been wandering earth since the late 60's after crash-landing in the middle of a hippy music festival. Assuming all humans dressed that way, she quickly scrounged up some discarded clothes and styled her many head tentacles into a fashionable dreads bun, so she could blend in.
Most of the humans were pretty...🛸spaced...out at the festival and just thought her green skin was some kind of psychedelic costume. It was best for her to just lay low until her fellow galactic companions could come rescue her.
But after all the humans had finished frolicking and partying, and had all left the desert, there still was no sign of a search effort.
Days dragged out in lonely walks across the littered sand. To pass the time Xella decided to rummage through the trash left by the human party goers. Most things were uninteresting, however when she stumbled across a little blue and cream coloured contraption she took a closer look. Rattling it made a noise but it's design seemed too complex for such a basic use. She tried looking through it, but to no avail. Then...she put it to her lips and blew air, causing a high pitch squeal. The purpose of this object (which she later learns is called a 'whistle') was unknown to her but she figured it might come in handy to signal her rescue team when they finally make it to earth.
Xella is the only one of her kind roaming earth...or so she thinks👽💚