We're pretty sure this star-studded split is going to have people picking sides.
And now we're getting a little look at their rocky relationship!
[Image via Brain To/WENN.]
We knew she was going to draw a crowd…
Sources have revealed that Katy Perry, Miley Cyrus, Adam Lambert, Serena Williams, Sia, and Pauly D are all RSVP'd to attend the show at Planet Hollywood Resort & Casino - right after celebrating Christmas!
Perhaps John Mayer will use the tix as a stocking stuffer for his lady Katy?!
And maybe Mileybird snagged seats as a reward for her twerkover of 2013!
Either way, we're super excited to see the celebs flocking to get a piece of Brit-Brit!
We can't wait for the pop princess to kill it in Sin City!