1993's [[Buhloone Mindstate]] saw the group evolve a new sound and cemented their position as mainstays of the [[alternative hip hop]] movement. There were several moments on the album which proved the band had matured. "I Be Blowin'" was a departure as the track was an instrumental featuring saxophone playing by the legendary [[Maceo Parker]]. The introspective "I Am I Be" showed De La Soul at their most self-referential to date with subject matter about Pos' daughter Ayana Monet as well as his grandmother. "Long Island Wildin'" was a collaboration with Japanese hip hop artists Kan Takagi (Major Force) and trio Scha Dara Parr (SDP). The album's first single, "[[Breakadawn]]", used a sample of Michael Jackson's "I Can't Help It" and Smokey Robinson's "Quiet Storm". De La Soul collaborated for the first time with [[Gang Starr]]'s [[Guru]] on "Patti Dooke", female MC Shortie No Mas, a cousin of Posdnuos, was prominent on many tracks on the album, showcased particularly "In The Woods". The album ended with an old school Biz Markie collaboration called "Stone Age". Missing from vocal duties is Mase, whose voice can only be heard on "Area" in a break near the end of the track. Also rarely featured is his scratching which was heard often on previous albums, with only "In the Woods" showcasing his talent in that area. The album was a critical success, but it was the biggest commercial failure for the group at the time of its release. Many publications, such as Rolling Stone, have listed this album as one of the best hip hop albums of all time.
In 1993, De La Soul performed together with [[Teenage Fanclub]] for the soundtrack of [[Judgment Night (film)|]], on a track called "".
In 1994, 500 copies of a promotional [[Extended play|EP]] called [[Clear Lake Audiotorium (EP)|]] were released on clear vinyl and CD. The 6 track EP contained edited versions of tracks off of Buhloone Mindstate but also featured the tracks "Sh.Fe.MC's" (Shocking Female MC's) which was a collaboration with A Tribe Called Quest, and "Stix & Stonz" which featured old-school hip hop artists Grandmaster Caz, Tito of Fearless Four, Whipper Whip, LA Sunshine and Superstar. The EP was widely bootlegged afterwards.
In 2000, the songs "Area" and "Keepin' the Faith" were featured in the movie [[Boiler Room (film)|]].