Welcome to the Jungle was released by Guns N' Roses in 1987 as the opening track of their debut album Appetite for Destruction, and it became one of the band's signature songs as hard rock crossed into mainstream culture. Its riff and chorus have since appeared in films, sports broadcasts, video games and countless online videos, turning it into shorthand for a wild, high-energy arrival. Decades later it still works because the intro is instantly recognisable and sets a tone of danger and excitement within seconds.