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Episode 6.03 - "My Coffee"

Scene: J.D. and Kim show off their unique piano-playing skills to her boss.
"Heart and Soul" written by Hoagy Carmichael.
Supposedly performed by Zach Braff and Elizabeth Banks.
Scene: Turk and J.D. encourage each other about fatherhood; Elliot takes the offer.
"All in All" by Lifehouse. Album: 'Lifehouse'