GP or GunnerPumpz is a notable member of the Tottenham gang NPK (Northumberland Park Kids) also known as SinSquad. He’s well known in SinSquad/NPK for being in the older generation of NPK/SinSquad in music. He makes a constant amount of music with people like KayyKayy and Uncs.
The most popular song by GP (Sin Squad)'s is Serious Drillings (Freestyle)
GP (Sin Squad)'s first song Serious Drillings (Freestyle) released on Wed Oct 28 2020.