Alt-pop star Sia performed on Sesame Street at the weekend.
The long-running children's show has a habit of pulling in some stellar guest stars, with everyone from Stevie Wonder to R.E.M. to Feist taking part.
Sia dropped past at the weekend to perform new cut 'S Is For Songs', especially written for the show.
Sesame Street characters - including Elmo! - donned her trademark black and white wig, joining in on backing vocals.
Tune in now.