Baker, who is a fan of the Glastonbury 2022 headliner, had no idea Eilish had ordered the print as it was purchased under a different name.
“I guess [my art] must have just come up on her feed or something,” Baker said.
“It is crazy… I was sat on the sofa with my partner and I was just like, ‘is this, is that real?’ I thought it was just like a scam or something.”
While Baker said she “loved anyone” who liked her art enough to buy it, she added it had felt “really validating” for a star as big as Eilish to appreciate it.
In a message to Baker, the 24-year-old singer said: “Absolutely in love with your work. I just ordered your fire horses on canvas. So excited.”