Katy Perry was reportedly spotted at Disneyland last week with her ex, John Mayer, and now rumors are flying that the duo are not only back together, but they’re also working on songs together.

Katy, who has been busy with her Prismatic tour, has been hanging out with John in a low-key vibe recently whenever she has time off, according to a source at People.

“They have spent time together, but it doesn’t seem like they are back in a serious relationship. It seems they only see each other whenever it’s convenient. They have spent time in L.A. when Katy has had a break from her tour. They hang out at Katy’s house and have had a dinner date at Sunset Tower,” the source said.

It doesn’t sound like the “Dark Horse” singer has too much free time, however; Perry’s best friend, songwriter Bonnie McKee, said recently that her friend hadn’t even started working on her next album yet despite her manager’s promises that it would be released in 2016.

“You know, Katy’s still been on tour and everything. She hasn’t gone in to start the new album yet. Hopefully! I’d love to be working with her again. I can’t wait to see what she does next actually, but nothing on the horizon just yet,” McKee said.

While it’s not clear what’s going on with Katy and John, rumors have been flying that she’s about to release a song that bashes Taylor Swift. The women have made several headlines over the years with their supposed “feud”, although neither of them has come right out and said they didn’t like the other; in fact, they were very friendly with each other at awards shows over the years. However, Swift said in a recent interview that a fellow singer stabbed her in the back by trying to hire her backup dancers away from her, and many assumed she was talking about Perry. Now, Swift declines to go down that path in interviews.

“I’m not giving them anything to write about. I’m not walking up the street with boys, I’m not stumbling out of clubs drunk. But I’m never going to talk about her in my interview. It’s not going to happen,” Swift said of Katy Perry.