Fix You is the fourth track on Coldplay's third album, X&Y. The song was written by all four members of the band, and was released as the second single from X&Y.
Reportedly, Chris Martin wrote the song for Gwyneth Paltrow after her father's death. The organ played in the song is said to have been a gift Bruce Paltrow gave to his daughter Gwyneth some years before his death.
Rolling Stone, in their review for X&Y…
When you try your best but you don't succeed
When you get what you want but not what you need
When you feel so tired but you can't sleep
Stuck in reverse