According to TV.com: "The closing credits were freeze frames from the episode, with the song "Nothing's Gonna Stop Me Now" playing behind them, aping the closing credits sequence of the TV show Perfect Strangers."
There is no such episode as "Treehouse of Horror You" so your question cannot be answered.
Treehouse of Horror XXV
Treehouse of Horror VIII
its Treehouse of Horror XVIII its a aswome episode
Treehouse of Horror XBart the FinkMayored to the Mob
Treehouse of Horror V
Treehouse of Horror VI from Season 7.
The ZuneThe Zune
That's part of the episode "Treehouse of Horror V," which was in season 6.
If by "They" you mean Bart & Lisa, that would be Future-Drama
The Simpsons "Nightmare on Evergreen Terrace" (A parody of Nightmare on Elm Street) is the middle part of Treehouse of Horror VI which is Season 7 episode 6
The Simpsons - 1989 Treehouse of Horror 2-3 is rated/received certificates of: Argentina:Atp