The two iconic lyricists went song-for-song in an extension of their late '80s rivalry for rap supremacy.
The showdown between the two hip-hop icons will take place at the Barclays Center in Brooklyn, N.Y. on Oct. 17.
Young Thug, Gunna, BIA, Lil Jon, Tobe Nwige, Baby Keem and more will also perform at the annual event.
The service, held in Markie's hometown of Patchogue, Long Island, was attended by A-list rap stars like LL Cool J, Big Daddy Kane, and Ice-T.
"How does someone define Biz Markie? I define him as one of the coolest rappers you could ever meet..."
VIBE compiled a list of songs that sample the late Juice Crew legend's music and lyrics.
The rap world mourns the loss of the rapper, producer, DJ and ultimate entertainer, Marcel Theo Hall.
Juice Crew members Big Daddy Kane and Craig G also speak on the rumors of the death of Biz, who was diagnosed with Type 2 Diabetes in 2010.