The Sticker Fest is an event in the Mushroom Kingdom. It is shown to celebrate the arrival of the Sticker Star, but is ruined because of Bowser. This is the location where Paper Mario: Sticker Star starts. Bowser touched the Sticker Star and seperated the Royal Stickers. During the game, a Sticker Fest Revival is shown to be possible, and becomes real in the epilogue
.The event, held by Princess Peach, welcomes the Sticker Comet which falls from the sky on the night. It is believed that the Sticker Comet is able to grant wishes. During the game's opening cut-scene, Peach can be seen standing on a stage in front of a large audience. The Sticker Comet then falls from the sky and hovers above the stage on a roped-off display. The Toads in the audience cheer in awe of the comet. Shortly afterward, Bowser gate-crashes the celebration and takes the Sticker Comet's power, which later causes the destruction of that year's Sticker Fest. After the
incident, Mario recovers and soon meets Kersti, a powerful Sticker who came from the Sticker Star to grant everyone's wishes at the Sticker Fest. She requests Mario to help her recover the Royal Stickers that were split from the Sticker Comet during the Sticker Fest.
Later in the game, it is revealed that several Toads are attempting to rebuild the celebration grounds in order to revive the Sticker Fest. These efforts succeed, as the entire ceremonial grounds are restored later. After defeating Bowser, Mario wishes that everything would return to normal; everyone appears on the stage at the grounds of the Sticker Fest, the Sticker Comet reconstructed and numerous Toads celebrating.