We all tell lies—it's just part of being human. And, of course, celebrities are no exception. Some of their lies, however, do have a much bigger impact, because they obviously reach (and often affect) a lot more people. And while lying about your temporary lip fillers might not be a big deal, lying about drug use, plagiarism, and adultery might just be a bit more serious!
In this gallery, we bring you some of the biggest lies ever told by celebrities. Click through to find out what exactly they were.