Can anyone in the world bring people together as much as Drake can? After learning that Katy Perry, Taylor Swift and John Mayer were all under the same roof to celebrate the rapper's birthday, there's no telling what else he can do.

Rumor has it that the longstanding beef between Katy and the 1989 singer stemmed from the fact that they both dated John, but it seems like they had no problem being in the same roof to celebrate the "Hotline Bling" rapper.

Some other party attendees did everyone a favor by posing with all three of the stars, to prove that they were all there indeed.

While there are no pictures of the stars together, there's no telling if they exchanged words or if they avoided each other all together.

We also wonder what Rihanna will think about this, since she's good friends with the "Roar" singer and the birthday boy just happens to be her ex. Where is the loyalty?! Well we hope to hear more about this party soon, and get all the details of what really went down.

Click through the gallery to see other celebrities who have ran into their exes and tell us what you would have done in the comments!