Extreme Rules (2013) is an upcoming professional wrestling pay-per-view (PPV) event produced annually by WWE. The name of the event stems from the term "Extreme Rules," which WWE uses to refer to its bouts that are contested under hardcore wrestling regulations.[citation needed] This will be the fifth Extreme Rules pay per view and the seventh under the Extreme Rules slogan introduced in 2007. The show has been moved on different occasions, 2009 taking place in June, 2010 and 2012 in April and 2011 and this event in May.