Wikipedia
KREEP, an acronym built from the letters K (the atomic symbol for potassium), REE ( Rare Earth Elements) and P (for phosphorus), is a geochemical component of some lunar impact breccia and basaltic rocks. Its most significant feature is somewhat enhanced concentration of a majority of so-called "incompatible" elements (those that are concentrated in the liquid phase during magma crystallization) and the heat-producing elements, namely radioactive uranium, thorium, and potassium (due to presence of the radioactive K).
"Kreep" is the second single from rapper Chino XL's debut album Here to Save You All. It is produced by the Eric Romero, who uses elements from "In-A-Gadda-Da-Vida" by Iron Butterfly, "Levitate" by Brecker Brothers, and "Repent Walpurgis" by Procol Harum for the drums. Additionally the song embodies portions from the song "Creep" by rock group Radiohead and "You Are Everything" by The Stylistics. This is perhaps Chino Xl's best-known song and his most successful, reaching number one the Billboard Bubbling Under R&B Singles Chart. It remained number one for two weeks and remained on the chart for 23 weeks from July 1996 to January 1997. Kreep also charted on the Billboard Hot Rap Singles Chart, peaking at number 41 and reached its peak on the week of September 21, 1996.