The Wonderful World of Cease A Leo is the only solo studio album by American rapper Lil' Cease. It was released on July 13, 1999 through Queen Bee/Atlantic Records.
Production was handled by Mario Winans, Nashiem Myrick, Bink!, Deric "D-Dot" Angelettie, EZ Elpee, Jay "Waxx" Garfield, Daven "Prestige" Vanderpool, P. Diddy, Alex "Algee" DeVaughn, Carlos "Six July" Broady, Darrell "Digga" Branch, Spunk Bigga and Lil' Cease himself.
It features guest appearances from his fellow Junior M.A.F.I.A. groupmates Blake C, Larce "Banger" Vegas and Lil' Kim, as well as Mr. Bristal, Joe Hooker, Puff Daddy, 112, Busta Rhymes, Carl Thomas, G. Dep, Jay-Z, Kelly Price and Redman.
In the United States, the album peaked at number 26 on the Billboard 200 and number 3 on the Top R&B/Hip-Hop Albums charts. Its lead single, "Play Around", made it to number 52 on the Hot R&B/Hip-Hop Songs and number 9 on the Hot Rap Songs charts.
The Wonderful World of Cease A Leo received mixed reviews from music critics. Keith Farley of AllMusic called it "a hardcore journey that never lacks on bass, beats, or party jams". Kris Ex, in his review for Rolling Stone, commended Lil Cease for his "cherubic wit" that "softens the nastiness of lyrics". The Source Elon D. Johnson called The Wonderful World of Cease A Leo "an honest effort". She praised Lil Cease's "charismatic lyricism", but criticized the album's outro, as well as its overall reliance on sampling.
Writing for Los Angeles Times, Soren Baker described the album as "uneven" and "party-tinged". He believed that Lil Cease had a strong performance on several tracks, reaching the level of his mentor the Notorious B.I.G, but panned the rest of the album for "weak choruses, bland production and recycled story lines". Tom Sinclair of Entertainment Weekly was critical of the album, saying that Lil Cease has "nothing novel to say, but at least his superstar buddies [...] add wattage". In a retrospective review, Steve Juon of RapReviews shared this view. He wrote that the album "doesn't make sense", as he believed that other featured artists outperformed Lil Cease.