Now, a source tells RadarOnline that they actually had another date and this one sounds even more promising than then dinner. "They were holed up in John's room at the Four Seasons all day long," a source tells the site. "They both got on the elevator together on the third floor and got off of the elevator together on the eight floor."
Katy had most recently been dating DJ Diplo and then things kind of fizzled out after he had another child with an ex. There is no confirmation that that's what caused the cool down in their relationship, but it probably wasn't super awesome for Katy, either.
After their dinner date over the weekend, a source told Us Weekly that they weren't "officially back on," but they were talking. So, does this second date make it official or do we still have to wait for their Facebook relationship status to change?
Because we love them together, here's a little look back at their relationship history. Are you seeing this, Katy and John? Look how cute you two are together...
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Gallery | Katy Perry and John Mayer