Song Beneath the Song

"The brain is the human body's most mysterious organ. It learns. It changes. It adapts. It tells us what we see, what we hear. It lets us feel love. I think it holds our soul. But no matter how much research we do, no one can really say how all the delicate gray matter inside our skull works. And when it's hurt, when the human brain is traumatized, well, that's when it gets even more mysterious."

- Callie Torres

'''In a series first, the music that has been at the heart of the show and been beloved by fans comes to life for Grey's Anatomy: The Music Event. A cataclysmic event rattles the doctors of Seattle Grace to the core, as Callie, on the verge of an enormous life-changing moment with Arizona, envisions her hospital and friends as it has never-been-seen before. "Chasing Cars" (Snow Patrol), "How to Save a Life" (The Fray) and "The Story" (Brandi Carlile) are among the songs performed by the cast in one of the most special hours of "Greys Anatomy" yet.''' thumb|300px|right

Full Summary
Episode in detail.

Music
This episode's title originated from the song , originally sung by Maria Taylor.
 * "Cosy in the Rocket" - Sara Ramírez
 * "Chasing Cars" - Sara Ramírez, Kevin McKidd and Chandra Wilson
 * "Breathe (2AM)" - Chyler Leigh
 * "How we operate" - Kevin McKidd
 * "Wait" - Chandra Wilson, Sarah Drew and Chyler Leigh
 * "Running On Sunshine" - Jesus Jackson
 * "Universe & U" - KT Turnstall
 * "Grace" - Kate Havnevik
 * "How to Save a Life" - The Fray
 * "The Story" - Brandi Carlile

Quotes

 * 3 quotes from the episode.

Main cast

 * Ellen Pompeo as Dr. Meredith Grey
 * Sandra Oh as Dr. Cristina Yang
 * Justin Chambers as Dr. Alex Karev
 * Chandra Wilson as Dr. Miranda Bailey
 * James Pickens Jr. as Dr. Richard Webber
 * Sara Ramirez as Dr. Calliope 'Callie' Torres
 * Eric Dane as Dr. Mark Sloan
 * Chyler Leigh as Dr. Alexandra 'Lexie' Grey
 * Kevin McKidd as Dr. Owen Hunt
 * Jessica Capshaw as Dr. Arizona Robbins
 * Kim Raver as Dr. Teddy Altman
 * Sarah Drew as Dr. April Kepner
 * Jesse Williams as Dr. Jackson Avery
 * Patrick Dempsey as Dr. Derek Shepherd

Special Guest Star

 * Kate Walsh as Dr. Addison Montgomery

Guest stars

 * Rachael Taylor as Dr. Lucy Fields
 * Daniel Sunjata as Nurse Eli
 * Scott Foley as Henry Burton

Co-Starring

 * Payton Silver as Dr. Knox