“Deep Inside” is the eleventh track on Incubus’s second studio album, S.C.I.E.N.C.E., released on September 9, 1997. Written by Brandon Boyd, Mike Einziger, Alex Katunich, Chris Kilmore, and José Pasillas, the song features a blend of funk metal and alternative rock, characterized by energetic guitar riffs and dynamic percussion. Lyrically, it explores themes of introspection and the complexities of human emotions. The track was performed live during the band's 2004 tours and was featured on the Live in Malaysia 2004 album, showcasing its significance in the band's live repertoire during that period.