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Episode 4.13 - "My Ocardial Infarction"

Scene: The a cappella sing-off -- Ted's Band.
"No, Not Much" written by Al Stillman & Robert Allen.
Performed by The Blanks. [More Info]

Scene: The a cappella sing-off -- Hibbleton.
"Barbara Ann" originally by The Beach Boys. Album: various
Vocal performance by Neil Flynn, Sam Lloyd, and Paul F. Perry.

Scene: J.D. puts Elliot's advice to use; Turk remains true to himself.
"All Kinds of Time" by Fountains of Wayne. Album: 'Welcome Interstate Managers'