"Landmines" is a song by Canadian rock band Sum 41, released on September 27, 2023 as the lead single from the band's eighth and final studio album Heaven :x: Hell (2024). A pop-punk song reminiscent of the band's early career, Whibley wrote the song after being approached to write songs for other artists; "Landmines" was one of the first written in this process, which Whibley decided to keep for Sum 41. The track received acclaim from music critics, who praised its catchiness despite some criticism towards its formulaic sound. "Landmines" peaked on the Canada Rock chart and the US Alternative Airplay chart, breaking the record for the longest gap between two songs by the same artist on the latter.