Mastermind Killaz is composed mainly of (from order of left to right on the image to the left) Lil Tazz, YinGSane, and DJ Dynamo. The songs created by MMK usually features other artists under Mastermind Records but these three make up the background of the sound. Lil Tazz normally raps on MMK's songs but also does a couple of singing vocal parts.Tazz is skillful in freestyling and usually brings a calm to some of the more hectic songs with his voice. YinGSane is the producer of all of MMK's songs. He creates and organizes all of the music behind the songs. He is more of a lyricist than a free styler, and prefers evil little whisper raps when doing a song. His lyrics are usually violent and he prefers his style to not be limited by the boundaries of hip-hopish rap with one drum loop being played over and over throughout a song. Dynamo brings the pain to the group. He creates alot of the tight beats behind the music of MMK's songs. He is also a lyricist, writing some of the lyrics and chorus' to the songs. His style of rapping is straight from the street; loud and fast. He is responsible for many of the hype rhymes and deep flows.