Conversation so far:
Who were the original members of the band the beastie boys?
The Beastie Boys were formed as a four-piece hardcore punk band, the Young Aborigines, in 1978 by Mike D, MCA, John Berry and Kate Schellenbach.
Who came up with the Beastie Boys name for the band?
John Berry was credited with naming the Beastie Boys.
Where did the band the beastie boys  first perform ?
The first Beastie Boys show took place at Berry's loft.
How many copies did the Beastie Boy's EP Polly Wog Stew sell?
What did the band The beastie boy do after the EP Polly Wog Stew release?
The Beastie Boys achieved local success with the 1983 experimental hip hop single Cooky Puss.
Which album was the band the beastie boys  first certified Gold album?
The Beastie Boy's first certified gold album was Licensed to ill.

Question: Who did they add for the single Cooky Puss?
Self-contained rewrite: Who did the band the beastie boys add for their debut single Cooky Puss?