Scrubs episode where this band was playing in the hospital?!

Question:

Scrubs episode where this band was playing in the hospital?

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All the band members were wearing white and kinda looked like they were from the 60s,all hippie like.They played an upbeat song.

Who are they and whats the name of the song?

Answers: The Polyphonic Spree - Light and Day Source(s):
http://www.youtube.com/watch?v=muhgkbw99...

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