Kat Von D and Ex Nikki Sixx Attend Jackass 3D Premiere Together

Very mature move, you two!
Kat Von D and her ex, Nikki Sixx, attended the premiere of Jackass 3D at Graumann’s Chinese Theater in Hollywood together.
Crazy to see all these celebs hanging with their ex’s lately! This is almost as surprising as Avril Lavigne hanging with her current boyfriend AND ex boyfriend at the same time last week!
What do U think about this trend? Do U hang out with your ex?
[Image via WENN.]