Artist of brr stick em ha ha ha stick em?

Answer 1

This is the chorus from the 1984 song "Stick 'Em" from the album Fat Boys by the Fat Boys, featuring (the late) Buff Love, the Human Beat Box.

The song was also performed by the Beastie Boys.

(See Fat Boys rendition at the related link)

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NOTE : There is a song with that name and that line, as stated above. However, the line, as it is commonly used, is from another Fat Boys song titled "Human Beat Box".

Answer 2

Coolio