Question: In which episode of Grey's Anatomy does the song "Chasing Cars" appear?
About the article "Chasing Cars", section "Covers and samples".

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The album's third track, "Chasing Cars", was featured on the second season finale of the ABC prime time hit drama "Grey's Anatomy" on 15 May 2006.
A "Grey's Anatomy"-themed video of the song can be seen at the ABC website.
The seventh track, "Make This Go On Forever", was later used in the third season of "Grey's Anatomy", at the end of the episode entitled "Walk on Water".
The album's tenth track, entitled "Open Your Eyes," was used in the season 4 finale of CBS's "Cold Case" and in the season 12 finale of "ER", also appeared in an episode of The Black Donnellys and also in the second episode of the third season of "Grey's Anatomy".
The sixth track, "You Could Be Happy", was used at the beginning the episode "Promise" of "Smallville'"s sixth season, as well as in advertisements for Australian soap Neighbours.
The single was also used in "Doctor Who: Top 5 Christmas Moments" and the Season 2 finale of BBC sitcom "Gavin & Stacey".
The first track, "You're All I Have", appears on the soundtrack of the teen film "The Invisible".
In 2007, "Open Your Eyes" was used as the "Best Bits" song for "Celebrity Big Brother 5" during the final watched by over 7 million viewers, the year of the race row.
In 2013, "Open Your Eyes" was heard in the penultimate episode of the hit NBC comedy The Office 9th season and the series.
In it, Jim Halpert asks the documentary crew to make a video to prove his love for his wife, Pam Halpert, consisting of footage of their relationship throughout the entire series, during which the song plays, 
The song was first featured on ABC's "Grey's Anatomy", after Alexandra Patsavas, the music supervisor for the show, saw the band perform in Los Angeles.
She was impressed with their performance, particularly with the song "How to Save a Life".
Alexandra then incorporated the song into "Superstition", an episode of the show's second season (first aired on March 19, 2006).
After its usage in the episode, the song became a minor Hot 100 hit.
The song became an "unofficial theme" for the other members of the "Grey's Anatomy" production after the episode aired, leading to the decision that the song would be used in the main promotion for the third season in the show.
"Grey's Anatomy" is credited with bringing popularity to the songThe song was then featured on NBC's comedy medical series "Scrubs", towards the end of the popular episode "My Lunch" on April 25, 2006, when three patients die from rabies contracted through organ transplants.
Dr. Cox (John C. McGinley) feels that it is through his oversight that the deaths occur, and subsequently, he emotionally collapses, and walks out of the hospital mid-shift.
The episode became one of the highest rated episodes of the series.
One week after the promotion for "Grey's Anatomy'"s third season began to air, "How to Save a Life" advanced from position #51 to position #29 on the Hot 100.
As the promotion played, the song continued to climb on the charts, reaching a peak position of #3 in the "Billboard" issue marked 7 October 2006.
On 21 September 2006, a "Grey's Anatomy" version of the music video (similar to the one made for Snow Patrol's "Chasing Cars") was shown prior to the third season premiere of the show.
The song was also released as one of the tracks on the "Grey's Anatomy, Vol.
2" soundtrack album, and would later be used in the trailer for the Australian release of the show.
The all time platinum hit lyrically originated as an ASCAP productional advantage in 2005.
In addition to "Grey's Anatomy" and "Scrubs", the song has been aired in episodes of "One Tree Hill", "Ghost Whisperer", "The Hills", "NCIS (TV series)", "8th & Ocean", "Cold Case" and in the United Kingdom for the final episode of "Big Brother 2007", "Waterloo Road", the encore episode of "Echo Beach" and in promos for series 22 of the BBC's" Casualty".
HBO used the song for its "Summer Image" television campaign, and it was also used in the trailer for the film "Reign Over Me".
During the season preview for the new Tila Tequila show "A Shot at Love", "How to Save a Life" plays as the backdrop music.
During Season 8 of "American Idol" 2009, "How To Save A Life" was played when finalist Danny Gokey exited the auditioning room and celebrated the passing of his first audition with his family and friends, in reference to Gokey's wife passing away of complications from congenital heart disease.
A piano cover version by Piano Tribute Players was played in the premiere episode of Season 2 of "The Vampire Diaries" during a scene at the Lockwood mansion.
Grey's Anatomy revisited the iconic song in its seventh season's music event episode, aired March 31, 2011.
The song is sung by the cast and incorporated into the storyline.
The lyrics to "How to Save a Life" are made relevant by overlaying the song to a stressful operating room scene in which the fate of Callie Torres and her baby are decided. 
"The Story" is a song released as a single by American folk rock singer Brandi Carlile, written by Phil Hanseroth, from her 2007 album "The Story".
It was featured in "Grey's Anatomy" in 2007 and is on Grey's Anatomy Soundtrack album 3 (released September 11).
About four years later, a version of the song has been recorded by "Grey's Anatomy" actress Sara Ramirez and was first presented in the 2011 episode "Song Beneath the Song". 
Carbon Glacier is an album by Laura Veirs, released in 2004.
The song Rapture was heard during the episode "Save Me", from the first season of "Grey's Anatomy". 
This song appeared on the 16th episode of Season 4 of the TV show Grey's Anatomy.