[1] In the episode, Kyle Broflovski and Stan Marsh take pity on Britney Spears after a botched suicide attempt, and are consequently intertwined into an ancient conspiracy.
[2] A live political debate between Barack Obama and Hillary Clinton is interrupted by breaking news on Britney Spears, who has been sighted urinating on a ladybug.
Stan and Britney board the train, while Kyle diverts the paparazzi and eventually confronts them for abusing her, pointing out that she is no longer in any condition to handle it and that she might die.
[3] When attempting to sneak away from the paparazzi at the hospital, one reporter emits a piercing scream while pointing at the escaping boys and Spears's manager, identical to the behavior of the pod people from Invasion of the Body Snatchers.
[5] The plot involving getting Spears to the North Pole and the narration on the train parodies the classic 1969 animated holiday TV special "Frosty the Snowman".
The sets included brief audio commentaries by Parker and Stone for each episode, a collection of deleted scenes, and two special mini-features, The Making of 'Major Boobage' and Six Days to South Park.