I am just now realizing that this is basically 90% movie endings
  1. The ending of Fight Club
    "Where Is My Mind" by The Pixies
  2. The ending of Warrior
    "About Today" by The National
  3. The ending of Slumdog Millionaire
    "Latika's Theme" by A. R. Rahman
  4. The piano scene in The Night Before
    "Runaway" by Kanye West
  5. The ending of Furious 7
    "See You Again" by Charlie Puth/Wiz Khalifa
  6. The credits of The Return of the King
    "Into the West" by Annie Lennox
  7. You've Got Mail
    "Dreams" by The Cranberries
  8. Toy Story 2
    "When She Loved Me" by Sarah McLachlan
  9. The guitar store scene in Once
    "Falling Slowly" by Glen Hansard and Marketa Irglova
  10. The Last of the Mohicans
    "I Will Find You" by Clannad
  11. Almost Famous
    "Tiny Dancer" Elton John
    Suggested by   @bailey
  12. "Baby, You're A Rich Man" by The Beatles at the ending of The Social Network
    Suggested by   @MatthewAlmont
  13. Fellowship of the Ring
    "The Ring Goes South" by Howard Shore (goosebumps every single time)
    Suggested by   @tawny
  14. The Breakfast Club
    "Don't You (Forget About Me)" by Simple Minds. Last few minutes of the movie and credits and perfectly captures it.
    Suggested by   @bware427
  15. Donnie Darko
    "Head Over Heels" Tears for Fears. Not into this movie really but this scene gets an A+
    Suggested by   @xtineengels
  16. "Stuck in the Middle With You" Steelers Wheel in Reservoir Dogs - a disturbing scene
    Suggested by   @jeffnewman