On Friday, the "Try Jesus" singer, 33, took the stage for an enthusiastic set wearing a neon green blazer with the word "single" across the back, implying that she and fiancé Dan Tooker are no longer together.
Though she made no mention of a breakup, she passionately pointed to the logo emblazoned on her jacket during her performances of her hit "Ex's & Oh's."
Last week, the rapper published a sequence of pictures in a cryptic Instagram post with the caption: "In my me myself n i era."
In February, King spoke to HotGossipNewz about finding love with Tooker after a turbulent 20s, in conjunction with the release of her latest album, Come Get Your Wife.
"I used to wonder, 'What will my music sound like if I ever get happy?'" And it's the best music I've ever made," King said of the new album to HotGossipNewz. "Right now, I'm experiencing a lot of joy in my life."
In 2019, she met Tooker, a tattoo artist, in his Boston tattoo shop.
"There was this electric thing I'd never felt before," King added. "We hung out, laughed, and then he tattooed me, and I uploaded a picture on Instagram with the caption, 'Getting tattooed by my next ex-husband.' Since then, we've been in love."
As King pondered why her secret marriage to Scottish beau Andrew Ferguson was stronger than her previous relationships, she joked that she needed to "get a man with a job!"
"What I learned from all of my relationships is that maybe most of it really had nothing to do with them," she explained. "We're like magnets." What was I doing to attract them? Why was I letting these things happen in my life? "What was the source of my lack of self-assurance?"
She went on to say, "I've changed a lot."