The Worst is a single by Onyx and Wu-Tang: Raekwon, Method Man and affiliate Killa Sin. Also in chorus was used ODB’s vocal sample from the Wu-Tang Clan’s “Protect Ya Neck”:
[Verse 4: Ol’ Dirty Bastard]
First things first, man, you’re fuckin’ with the worst
The song was released as a single from Ride (1998) movie soundtrack. The first version of track (from the Shut ’Em Down ’98 promo album) was called “Onyx vs. Wu-Tang”.
It was produced by Latief and samples Quincy Jones’ “Up Against the Wall”: