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Yikes! Talk about a BIG mistake --
Katy Perry recently revealed that she had a chance to work with Billie Eilish and possibly had the opportunity to sign her.
Katy said that someone had sent a song over to her - saying that "She sent me an email one time that was, 'Hey, check out this new artist. I’d really like us to work with her. It was a song called 'Ocean Eyes,' and it was just a blonde girl, and it was like, meh, boring."
She's now admitted that it was a big mistake, and that she's always has been available to be an ear for Billie in case she needs some advice on her career.
Looks like Billie was the one that got away...