WrestleMania XXV ( also marketed as `` The 25th Anniversary of WrestleMania '' ) was the twenty-fifth annual WrestleMania professional wrestling pay-per-view event produced by World Wrestling Entertainment ( WWE ) .
WrestleMania XXV ( or The 25th Anniversary of WrestleMania or WrestleMania 25 ) , was the twenty-fifth yearly WrestleMania professional wrestling Pay-per-view produced by World Wrestling Entertainment and took place on April 5 , 2009 at Reliant Stadium in Houston , Texas .