Plays Musicals

The musical "Springtime for Hitler" features within which other musical?

More Questions from Plays Musicals
Why does Henry refuse to ransom Mortimer in Part 1 of "Henry IV"?
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Which duo wrote the musical "The Pirates of Penzance"?
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What do musicals have that plays do not?
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In "Grease" what was "Greased Lightnin'"?
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Which 80's pop star starred as Billy Flynn in "Chicago" in 2007?
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Which astrologically-titled song was a hit from the soundtrack of "Hair"?
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What 2000 cheerleading movie was made into a musical in 2011?
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According to "Gentlemen Prefer Blondes" what is a girl's best friend?
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