"It's like having a friend with very specific allergies," she said.

Lorde Apologizes for Saying Being Friends with Taylor Swift Is 'Like Having a Friend with an Autoimmune Disease'

Lorde has come under fire after comparing her friend Taylor Swift to an “autoimmune disease” in an interview with The Guardian on Saturday.

Speaking on the difficulty of maintaining a close friendship with someone as famous as Swift, 27, Lorde told The Guardian, “It’s like having a friend with very specific allergies. There are certain places you can’t go together. Certain things you can’t do.”

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“There are these different sets of considerations within the friendship,” Lorde continued. “It’s like having a friend with an autoimmune disease.”

After a fan mentioned how fellow Swift friend Selena Gomez might (who suffers from lupus) feel about the disease comment, Lorde apologized on Twitter, writing, “didn’t mention taylor, but regardless, i f—– up & that was really insensitive. i’m sorry.”

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The two musicians are close friends, with Swift throwing Lorde a 20th star-studded birthday party in November.

“Had the best birthday party I’ve ever had tonight surrounded by my nyc family. all organised by tay who is as she says ‘a mom with no kids’. i am ur kid and u love me so hard i could burst. here’s to our 3 magic years of best friendship and more moments like this squished between angels,” the singer wrote in an Instagram photo of herself, Swift and model Karlie Kloss.

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Ahead of the party, Swift penned a sweet tribute to her friend which she posted on Instagram.