WrestleMania XXVI
Along with WrestleMania XXVI, a series of events grouped as "WrestleMania Week" were held in the week preceding the event. To begin promotion for the event in Glendale, a "Kick-off Party" was held at the Westgate City Center on March 19, which included appearances from WWE wrestlers, autograph signings and live entertainment along with a giant LED screen viewing of that night's episode of "SmackDown". The third annual "WrestleMania Art" (formerly "WrestleManiArt"), an art exhibition and auction featuring work by WWE superstars, was held on March 24 at the Make-A-Wish Foundation National Headquarters. WrestleMania's annual fan convention, WrestleMania Axxess, was held from March 25 through March 28 at the Phoenix Convention Center. On March 27, WWE hosted its annual WWE Hall of Fame ceremony at the Dodge Theater, where the Class of 2010 were inducted.
WrestleMania XXVII
Starting from the January 31 episode of "Raw", mysterious vignettes began promoting an upcoming event on "2.21.11". On the February 21 edition of "Raw", The Undertaker was revealed as the mysterious figure, who made his return after a four-month absence. However, Undertaker's return was interrupted by a returning Triple H. The two men stared each other down and both peered at the WrestleMania marquee, teasing a possible challenge at WrestleMania XXVII. The match was confirmed four days later on WWE's official website. This match marks the second time the two would face each other at a WrestleMania, the first being WrestleMania X-Seven ten years earlier. Before their WrestleMania match, both men had a face to face encounter on the March 28 episode of "Raw", only to be interrupted by Shawn Michaels, who critictized Triple H for believing that he could defeat The Undertaker at the event, something that Michaels wasn't able to do. After The Undertaker said that Michaels was history, Michaels attempted to superkick him, but The Undertaker retaliated with a chokeslam that was stopped by Triple H, who then asked Michaels why he is going to defeat The Undertaker at WrestleMania. Michaels, however, left the ring, unable to give Triple H an answer, believing that Triple H couldn't defeat The Undertaker at the event.