"The Quiet Things That No One Ever Knows" is a single by American rock band Brand New. It was the first single from their second album, Deja Entendu (2003). The single was originally released commercially on 7" vinyl in the UK on October 6, 2003. It was re-released as a CD, DVD and 7" vinyl single set to promote their UK tour with Incubus on May 17, 2004.
The music video was directed by Kurt St. Thomas and Mike Gioscia. In the video, Jesse Lacey crashes his car while driving with his girlfriend (played by Alison Haislip). Afterwards, he is seen sitting with her in an ambulance. In the middle of the song, her heart stops, and she is taken to the emergency room where medics try to save her life. During the bridge, a waiting room is shown where the other band members wait for the result of her condition; Jesse is shown in a room full of candles. When the bridge ends, she wakes and opens her eyes. At the end of the video, Jesse is shown lying on the ground at the scene of the accident, suggesting that he did not actually survive the crash. Between the storyline, the band is shown in a room where they play the song, with Jesse slowly fading out at the end.