Billboard later revealed that these retroactive credits resulted in Olivia giving up 50% of the royalties on each of the songs.
Speaking to Teen Vogue in October of that same year, the teen admitted that she'd struggled to come to grips with the "business side of music" as she reflected on the situation, but added, "I feel it doesn’t have too much to do with me."
"I think it’s disappointing to see people take things out of context and discredit any young woman’s work," Olivia said at the time. "Every single artist is inspired by artists who have come before them. It’s sort of a fun, beautiful sharing process. Nothing in music is ever new. There’s four chords in every song. That’s the fun part — trying to make that your own."
Olivia was also defended by other artists at the time, including Elvis Costello and Adam Levine. Her cowriter and producer Dan Nigro told Time, "It seems like people get funny about things when songs become really popular."
And Olivia has now opened up some more about the entire situation in a new interview with Rolling Stone amid the release of her sophomore album, Guts.
Now 20, the star told the publication that she "was a little caught off guard" by the way other people took credit for her music.
"At the time, it was very confusing, and I was green and bright-eyed and bushy-tailed," Olivia said. She then clarified that it was her team who handled the situation, and she wasn't "super involved in" the ins and outs of how it was resolved.
When asked if she would ever "demand credit from a young artist," Olivia appeared to throw subtle shade as she replied, "I don't think I would ever personally do that."
"But who’s to say where I’ll be in 20, 30 years. All that I can do is write my songs and focus on what I can control," she added.
After everything went down two years ago, it was widely reported that Olivia and her former idol Taylor had fallen out as a result of it.
Prior to Sour's release, Olivia had regularly gushed about how much she loved the singer, who first found fame when Olivia was just 3 years old.
Taylor reciprocated the affection in sweet social media posts, and the two even exchanged handwritten letters when they first met.
But by the end of 2021, the two stars were no longer publicly engaging with one another. And in October that year, Olivia confessed that she'd discovered that people in the industry who she once admired were actually "mean girls."
As Alanis Morissette looked back at her early career in a Rolling Stone interview with the then-teen, she recalled, "There was a lot of bullying and a lot of jealousy and a lot of people whom I’d adored my whole life being mean girls,” to which Olivia replied, “Same!”
Fans have theorized that Olivia has reflected on this rumored fallout with Taylor on her Guts track "The Grudge," which is about feeling confused, hurt, and let down by somebody who she once had "undying love" for.
And when Rolling Stone asked Olivia about this hotly speculated feud, Olivia apparently went "quiet" before insisting, "I don't have beef with anyone. I'm very chill. I keep to myself. I have my four friends, and my mom, and that's really the only people I talk to ever. There's nothing to say."
Acknowledging the widespread theories about her and Taylor's relationship online, she added, "There’s so many Twitter conspiracy theories. I only look at alien conspiracy theories."
Needless to say, this response did little to deter fans, who took to social media to share their reaction to Olivia's answer.
"lol, even that answer shows that she clearly does," one person wrote on a Reddit forum.
"I do believe that there’s no beef because 'beef' is a harsh way to put it. I don’t think they’re in an ongoing feud but I also think it’s quite obvious that something turned Olivia off of Taylor," one more wrote. "If she still loved/idolized Taylor she would’ve said something like 'I can’t believe people think that! I love Taylor' and it would’ve ended all of this. She has given a vague response every time she’s been asked about this and that says something."
"There's a noticeable shift in how she talks about Taylor," someone else agreed. "In fact, she doesn't even mention Taylor by name. Instead of saying 'Taylor and I are on good terms,' she avoids the question. She’s been classy and I respect her for that."
"Actually read the article and I'm a fan but you can definitely read the pr training specifically for that question in particular," one more commented.
Someone else added, "I think she’s definitely soured on Taylor but she’s being smart not talking about it."
Others pointed out that after repeatedly listing Taylor as one of her idols at the start of her career, she was notably absent from the rising star's latest list of inspirations in the Rolling Stone piece.
"Honestly it's so sad how liv doesn't talk about Taylor Swift anymore, TS was her role model growing up and she used to talk about her almost every interview every time all the time. It's sad how it all went down. I'm still frustrated," one fan wrote.
In the article, Olivia namechecks everybody from Lorde to Taylor's former nemesis Katy Perry — who said she offered to be a mentor to Olivia early on in her career.
"The first time I met her I put my hands on her shoulders and was like, ‘Listen, I’m here. Whatever you need,'" Katy told the publication. "Because I know exactly what these pop girlies are going through, and when I was growing up, no one really did that for me.”
Meanwhile, Taylor was seen clapping for Olivia at the VMAs on Wednesday night, but it has been argued that this doesn’t prove anything about their current relationship.