In this Christmas Special, we speak to the actual Santa Claus, via his little helper and confidant, consummate clown Herbie Treehead. Herbie is a phenomenal street-performer, known around the world for his joyful daftness, silly songs and funny bones.

We talk about what his first Santa season means to him, and discover an enormously rich and respectful seam of kindness and good cheer. We also dive into Herbie's origins as a performer and his maverick work within vaudeville troupe Slightly Fat Features; learn how to steal a lorry; and reflect on the nature and cost of real performative risk...