"Snappin & Trappin'" features a guest appearance from then-unknown rapper Killer Mike. The rapper noted that while working with Outkast, he used the opportunity to try to "compete" with the duo to improve his rapping skills. Big Boi was impressed with Killer Mike's abilities, noting, "When I first heard him spit, his voice was just so commanding. He's a very intelligent guy." Composition Music and style While OutKast's previous albums were considered to be laid-back, mellow efforts, Stankonia contains faster, more high-energy tempos, partially to reflect the "chaotic times" at the turn of the 21st century. The group took note of new, harder drugs hitting the hip hop scene and teenagers using ecstasy, cocaine, and methamphetamine. Big Boi reflected, "Niggas living this life at a fast speed don't know what's going on around them. If you live fast, you gonna come out of here real fast, so the music need to show that." While recording Stankonia, the band refrained from listening to hip hop, "That music was starting to sound real comfortable. There wasn't any adventure to it." Instead, the duo drew influence from musicians such as Jimi Hendrix, Little Richard, Prince, and George Clinton, as well as Clinton's Parliament-Funkadelic collective. However, the band refrained from producing a throwback sound with the record and instead hoped to utilize these influences in a modern, experimental fashion. André 3000 stated that "I don't want this to be the generation that went back to '70s rock. You gotta take it and do new things with it." On Stankonia, OutKast experimented with a wide variety of musical genres. According to M. Matos of Vibe, Stankonia "turned the South's predominantly reclined hip-hop sound into something freaky and menacing." AllMusic's Steve Huey said their experimentation resulted in "a trippy sort of techno-psychedelic funk". "B.O.B" features "jittery drum'n'bass rhythms" and has been classified as a "stylistic tour de force" combining "Hendrix-ian" guitars, organs, and gospel vocals. On the track, André 3000 and Big Boi employ a "frantic" flow in order to keep pace with the song's high-speed tempo, which runs at 155 beats per minute.Hess, 2007. p. 465 "Humble Mumble" is a salsa-influenced track that evolves into a club groove, while "Ms. Jackson" "marries early Prince with late P-funk". The smooth melodies of "I'll Call Before I Come" have also been likened to Prince.Brackett, Nathan. Hoard, Christian. p. 610 "Gasoline Dreams" has been classified as a "gritty