The former couple were reportedly seen sharing a meal in Beverly Hills over the weekend, with John returning to Katy's home later that night.
Exes who are still friends having a catch up? Or exes who actually still love each other and getting back together?
A source told Us Weekly that Katy and John aren't an official couple as of yet, but they are back in contact and spending time together.
Another insider told People that the former couple are "friends" and "it's not a surprise they would see each other socially", adding it's not an indication romance is back on the cards.
We shall wait and see!
Katy and John split last year after an on-off relationship and she was most recently linked to music producer Diplo.
However, Katy has always kept mum on those romance rumours – and her split from John.
When quizzed on an Australian TV show after her split from John whether she had a boyfriend, the coy star would only say: "All of my fans are my boyfriends!"
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