One Night Stand is an annual professional wrestling pay-per-view event produced by World Wrestling Entertainment (WWE). For the first two years the event featured wrestlers from the former Extreme Championship Wrestling (ECW) promotion, whose holdings WWE purchased in bankruptcy court, and was promoted under the ECW initials. The 2005 show was a tribute show to the original ECW, with most of the match participants being ECW alumni including those who were not under contract with WWE at the time. The 2006 edition, however, marked the kickoff to WWE's new ECW brand. While the 2007 edition became a tri-branded pay per view, the event's roots were retained as every match took place under Extreme Rules.