Despite our desire to believe that every talk show host eagerly welcomes celebrities onto their shows, that assumption does not always hold true. Famous people make mistakes all the time, and occasionally their controversies lead them to be banned from popular TV shows. Throughout the years, certain talk shows have accumulated extensive catalogs of celebrities they decline to work with, and surprisingly, it’s not always due to bad behavior. Whether they had a public controversy or the host has a personal vendetta, you won’t be seeing these stars on many talk shows, and now you’ll finally know why.