Whether it's in school or at the office, you can’t always get along with everyone — and this also applies to celebrities.

Sometimes it's because of working differences. Sometimes actual arguments or on-set fights can cause a riff between stars. Other times, a celebrity’s alleged behavior, legal issues or political/worldviews might stop other stars from working with then. And while many of us can't always choose who we work with next, most celebrities do have a say in who they will collaborate or work with on future projects.

Below, find out which celebrities refuse to work with certain other stars — and why.

Stars Who Celebrities Refuse to Work With