"Let Me Out" is an instrumental song that plays in "Mirror Gem" after Garnet tries to take the mirror away from Steven. Steven panics, slaps Garnet, and runs off apologizing. Garnet then tells the other Crystal Gems to "fan out" in order to find him. Steven panics, and asks the mirror what to do. The track ends as he successfully frees Lapis Lazuli from the mirror.
This song is available on Aivi & Surasshu's SoundCloud stream.