<Tr> <Th> Recorded </Th> <Td> February 2011 </Td> </Tr> <Tr> <Th> Length </Th> <Td> 35: 48 </Td> </Tr> <Table> <Tr> <Th> No . </Th> <Th> Title </Th> <Th> Writer (s) </Th> <Th> Performer (s) </Th> <Th> Length </Th> </Tr> <Tr> <Td> 1 . </Td> <Td> "Chasing Cars" (Original by Snow Patrol) </Td> <Td> Gary Lightbody </Td> <Td> Sara Ramirez, Kevin McKidd, Chandra Wilson </Td> <Td> 4: 11 </Td> </Tr> <Tr> <Td> 2 . </Td> <Td> "Breathe" (Original by Anna Nalick) </Td> <Td> Anna Nalick </Td> <Td> Chyler Leigh </Td> <Td> 4: 36 </Td> </Tr> <Tr> <Td> 3 . </Td> <Td> "How We Operate" (Original by Gomez) </Td> <Td> Ben Ottewell </Td> <Td> Kevin McKidd </Td> <Td> 4: 30 </Td> </Tr> <Tr> <Td> 4 . </Td> <Td> "Wait" (Original by Get Set Go) </Td> <Td> </Td> <Td> Chandra Wilson, Sarah Drew, Chyler Leigh </Td> <Td> 3: 22 </Td> </Tr> <Tr> <Td> 5 . </Td> <Td> "Runnin' on Sunshine" (Original by Jesus Jackson) </Td> <Td> Norman Cook, Roland Clark </Td> <Td> Sara Ramirez, Daniel Sunjata, Kevin McKidd, Scott Foley, Justin Chambers, Chandra Wilson, Jessica Capshaw, Kim Raver, Chyler Leigh, Ellen Pompeo, and Patrick Dempsey </Td> <Td> 4: 05 </Td> </Tr> <Tr> <Td> 6 . </Td> <Td> "Universe & U" (Original by KT Tunstall) </Td> <Td> Tunstall, Pleasure </Td> <Td> Sara Ramirez, Jessica Capshaw </Td> <Td> 4: 05 </Td> </Tr> <Tr> <Td> 7 . </Td> <Td> "Grace" (Original by Kate Havnevik) </Td> <Td> Kate Havnevik </Td> <Td> Sara Ramirez, Sarah Drew, Chyler Leigh </Td> <Td> 3: 45 </Td> </Tr> <Tr> <Td> 8 . </Td> <Td> "How to Save a Life" (Original by The Fray) </Td> <Td> Isaac Slade, Joe King </Td> <Td> Kevin McKidd, Kim Raver, Ellen Pompeo, Eric Dane, Chyler Leigh, Jessica Capshaw, Sara Ramirez, Chandra Wilson, Sarah Drew, Justin Chambers </Td> <Td> 3: 46 </Td> </Tr> <Tr> <Td> 9 . </Td> <Td> "The Story" (Original by Brandi Carlile) </Td> <Td> Phil Hanseroth </Td> <Td> Sara Ramirez </Td> <Td> 3: 28 </Td> </Tr> </Table> <Tr> <Th> No . </Th> <Th> Title </Th> <Th> Writer (s) </Th> <Th> Performer (s) </Th> <Th> Length </Th> </Tr>

Who is singing in grey's anatomy season 7 episode 18
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