I know what we need, we need the killer! I know what we need, we need the killer! I know what we need, we need the killer! I know what we need, we need the killer! Brother, sister Brother, sister I know what we need, we need the killer! I know what we need, we need the killer! Killer rock sound! Killer rock sound! Killer rock sound! Killer rock sound! Killer rock sound! Brother, sister Brother, sister Brother, sister Brother Killer rock sound!