Jasper Marsalis, better known as Slauson Malone 1 (and formerly just Slauson Malone), is an American hip-hop, and experimental music producer from New York City. He is the son of jazz musician Wynton Marsalis.

He is a former member of Standing on the Corner, an underground experimental jazz and hip-hop group based in Brooklyn. He is also heavily affiliated with sLUms, a New York hip-hop collective filled with underground legends such as MIKE.

He was also part of the duo with Medhane, called Medslaus which released their first mixtape, Greys In Yellow, in 2015.