Knock Knock Knockin' on Jackson's Head

Knock Knock Knockin' on Jackson's Head is the 11th episode of the third season of Hannah Montana. The title of this episode is a reference to “Knockin’ on Heaven’s Door” by Guns ‘N Roses.
==Plot==
After being hit on his head, Jackson suffers amnesia and Miley tricks him into believing that he praises her. When Jackson starts to repel cute boys from Miley, she changes her mind and tries to bring him back real memories. Only after she says she misses the old Jackson, he reveals that the amnesia was fake and that he and dad have tricked Miley. In the end Miley and Jackson forgive each other.
On the beach, Rico convinces Lilly to act like his girlfriend because his cousin, Angus, is visiting him, in exchange for math lessons. Angus comes with a fake girlfriend named Barbie and starts to fight with Rico, during which Lilly and Barbie suggest giving lessons to each other (The other girl is good at math but needs to get better in Spanish which Lilly is good at). In the end, Lilly and Barbie become friends.
==Gallery==
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==Trivia==
*Angus was played by Moises Arias, which is the second time that a cousin is played by the same actor after Miley with her cousin Luann Stewart in the episode "Torn Between Two Hannahs."
**The scenes between Rico and Angus were shot on a green screen, with a stunt double for Arias to react to. This was also used for "Torn Between Two Hannahs" and another Disney Channel show, Liv and Maddie.
*The answer given to the math question is in fact the square root of 69.
*Miley said the first couple of words of the intro song "I got the limo out front, hottest styles, every shoe..."
*According to Miley, Rico has a "blackmail dance"
*The events of "Me and Rico Down by the School Yard" were indirectly and briefly mentioned by Miley.
*Jackson was faking his amnesia.
*When Angus asks Miley and Jackson where Rico's Surf Shop is, Jackson points to the location as if he knows where it is, foreshadowing the reveal that he faked his amnesia.