What's your favourite musical trademark of a band/artist?

i.e thom yorke "wailing"
conor oberst's fringe

Mine is Morrissey chewbacca noise that he does.
You can hear this at about 1:30 in "hairdresser on fire" and at various other points in the song, if you're bothered.
God it's amazing. I'd probably do literally anything he told me to. Even jump off a cliff or eat meat or like poo or something. because i love him

you?