The song "Stitches" by Shawn Mendes is performed and composed in the key of B minor. It was released as a single in 2015 and also included in Mendes' debut studio album, "Handwritten." The song was co-written by Teddy Geiger, Daniel Kyriakides, and Danny Parker. "Stitches" became a commercial success, reaching the top 10 in several countries, including the United States, United Kingdom, and Canada. As for the melody, it features a catchy guitar-driven instrumental, accompanied by Mendes' emotive vocals. Trivia-wise, the song's lyrics revolve around heartbreak and the struggle to move on from a broken relationship.