Like many tracks on Risk, "Crush 'Em" is a prime example of Megadeth's musical experimentation of the 1990s. It begins with an ominous techno beat (removed on the remaster) and disco bass line. This is soon followed by funkguitar riffs in between sets of lyrics. The song eventually culminates into a heavy metal pre-chorus and finally with chants of "Crush! ...Crush 'em!" As track #4 on Risk, it is preluded by "Enter the Arena," which foreshadows the chorus guitar riff and crowd chanting of "Crush 'Em." Regarding the song's style, frontmanDave Mustaine told MTV News, "We're going into an arena we've never been in before." He added, "I think the best part about it is, it's a good ass-whuppin' song. . . It's the kind of song I would imagine wanting to hear while I was beating somebody senseless."[2]
The producer/director of Universal Soldier: The Return initially wanted "Crush 'Em" for the film which stars Jean-Claude Van Damme and professional wrestlerBill Goldberg. Upon hearing the song, Goldberg, a big Megadeth fan, spoke with officials of his employer, World Championship Wrestling (WCW), and convinced them to have the band perform it live on the July 5, 1999 edition of Monday Nitro.[4] This also marked the return of Goldberg after a six-month absence; immediately after the song, he appeared out of a cloud of fog and announced "I'm baaack!" After the song, Nitro went off the air and the band played three more songs with the Nitro Girls dancing on stage with them.[5] A VHS of the Nitro performance was later released. The song also became Goldberg's temporary entrance theme and was used in a video montage of his in-ring performances. This shortened version was included on WCW Mayhem: The Music along with his previous theme, "Invasion."
Mustaine, a black belt and fan of the NHL's Arizona Coyotes, has described "Crush 'Em" as Megadeth's official sports and wrestling anthem. He wrote the song primarily as a hockey theme and said that he was "sick of hearing Gary Glitter's 'Rock and Roll Part 2' every time someone scored a goal." Mustaine added, "I thought, 'maybe we can do something that is celebratory and inspiring.' So we did 'Crush 'Em,' which we also felt would be good for any sport."[6] After offering the Coyotes severals songs that they declined to use, the band decided to give "Crush 'Em" directly to the NHL, which chose to use it on the JumboTron screens the following season. Aside from WCW and NHL appearances, "Crush 'Em" became a favorite in Major League Baseball and was requested for use by the NFL. It appeared on NHL 2Toronto: All Star Game Hits! in 2000, and the Tom Leykis radio show regularly uses portions of the song as transitional music.