AC/DC are an Australian hard rock band, formed by brothers Malcolm and Angus Young.

In "Amish Guy", Peter sings the AC/DC song "Highway To Hell".

Their song "Back in Black" is played while Peter masters a forklift in "Peter Problems".

In "Take a Letter", Peter wonders if Stewie will have to wear a uniform like the guy in AC/DC. Brian wonders why guitarist Angus Young wears his schoolboy uniform to which Peter answers 'because he rocks.' In a cutaway gag, Angus notes that he never knew he'd have to wear it until he was sixty and that he is very cold.

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