Pharrell was basically a gifted nerd who went to a privileged school and liked to twiddle knobs.

Just like Fatboy, Guetta is an artist so charismatic he makes people forget his primary role is to twiddle knobs.

Aphex Twin twiddles knobs during his set.

Metal fans hoping for an intended pre-Christmas release were disillusioned to learn Axl is still twiddling knobs, negotiating contracts and penning liner notes.