Original: Mother 's Milk ( 1989 1990 ) In an attempt to cope with the death of Slovak and the departure of Irons , Kiedis and Flea temporarily employed Dead Kennedys drummer D. H. Peligro and former P-Funk guitarist DeWayne '' Blackbyrd '' McKnight .
Simplified: Mainstream success After Slovak died and Irons left the band , D. H. Peligro ( from the band Dead Kennedys ) and DeWayne '' Blackbyrd '' McKnight joined Red Hot Chili Peppers .