Posdnuos

Bio

Kelvin Mercer is Posdnuos. The name is "Sound-sop," an early DJ alias of his, spelled backwards. The reversal is the kind of joke that defines the early De La Soul sensibility, which is to say: smart, indulgent, a little goofy, capable of standing up to thirty years of repeated listening.

He was born in the Bronx in 1969 and raised in Amityville, Long Island. He went to Amityville Memorial High with David Jolicoeur and Vincent Mason, who would become Trugoy the Dove (later just Dave) and Maseo. They started rapping together in their late teens. They sent a demo to Stetsasonic producer Prince Paul. Prince Paul agreed to produce them. In March 1989, Tommy Boy Records released 3 Feet High and Rising. The album is one of the few canonical hip-hop records that basically everybody, including people who do not otherwise listen to hip-hop, agrees is good.

Pos is the lead voice on most De La records. He is Plug One. He writes the most. The De La voice (sly, allusive, willing to be soft, willing to be funny without becoming a comedy rap act) is mostly his pen. If you have a favorite De La line, there is a decent chance Pos wrote it.

3 Feet High and Rising created a lawsuit problem. Specifically: De La sampled the Turtles' "You Showed Me" on "Transmitting Live from Mars" without licensing it. The Turtles sued for $2.5 million. The case settled out of court for an undisclosed amount but established, for the entire hip-hop industry, that sampling without clearance was no longer going to be tolerated. Every album made after that lawsuit got more expensive to make. Posdnuos is, indirectly, one of the people who turned sampling clearance into a line item.

The De La catalog after that is uneven, underrated, and contains some of the best rap records of the 1990s and 2000s. De La Soul Is Dead (1991). Buhloone Mindstate (1993). Stakes Is High (1996). Art Official Intelligence: Mosaic Thump (2000). The Grind Date (2004). All of them have Pos doing the heavy lifting.

After Dave's death in 2023, Pos and Maseo have continued performing as De La. Pos has been frank in interviews about the grief. He is, in 2026, fifty-seven years old, still rapping, still beloved by the rappers who came up reading his discography as a syllabus. The pen still works.