Sledgehammer was first performed live in 2011.
 Sledgehammers were formerly widely used in mining operations, particularly hand steel, but are rarely used in modern mining
 In an interview with Official Charts Company, Trainor revealed that "Sledgehammer" was one of the songs she wrote for her solo debut album  later called Title (2015)  however, Epic Records decided to release "All About That Bass" as a lead single, so Trainor offered the song to Fifth Harmony

