became known as the "WWF Tag Team Championship" when the promotion was renamed World Wrestling Federation (WWF). It was subsequently renamed "WWF World Tag Team Championship" in 1983, but was often referred to as the "WWF Tag Team Championship" for short. In March 2001, the WWF purchased World Championship Wrestling (WCW) and its championships were now also defended on WWF programming. Soon after, "The Invasion" took place in which the WCW/ECW Alliance was ultimately dismantled. At the 2001 Survivor Series pay-per-view, the title was unified with the WCW Tag Team Championship in a steel cage match. Then-WCW Tag Team Champions, the Dudley Boyz, defeated then-WWF Tag Team Champions, the Hardy Boyz, and were named the last WCW Tag Team Champions, as that title was deactivated, while becoming the new WWF Tag Team Champions. After the WWF/WWE name change in 2002, the championship was subsequently renamed "WWE Tag Team Championship". During the initial WWE brand extension, the WWE Tag Team Championship was assigned to the SmackDown! brand as the reigning champions at the time of the initial expansion, Billy and Chuck, were both drafted to SmackDown! together. In July of that year, shortly after defeating Hollywood Hulk Hogan and Edge for the titles, the reigning champion team of Lance Storm and Christian (The Un-Americans) left SmackDown! for Raw, leaving SmackDown! without a tag team title. As a result, then-SmackDown! General Manager Stephanie McMahon commissioned a new tag team title, also called the WWE Tag Team Championship, to be the exclusive tag team titles for the SmackDown! brand. With the introduction of the World Heavyweight Championship on the Raw brand after the WWE Championship became exclusive to SmackDown!, the WWE Tag Team Championship on Raw was renamed "World Tag Team Championship". This was done so that the names of both tag team titles would mirror the names of the top championships on their respective brands. When the WWE Championship and World Heavyweight Championship switched brands during the 2005 WWE draft lottery, however, neither of the tag team titles were renamed. In late 2008 through early 2009, then-WWE Tag Team Champions The Colóns (Carlito and Primo) engaged in rivalry with then-World Tag Team Champions John Morrison and The Miz, with the two teams exchanging victories in non-title matches and retaining their respective titles against each other. On the March 17 episode of ECW on Syfy, it was announced that at WrestleMania 25, both