Tim Minchin performed at this year’s 9 Carols for a Godless Christmas show at the Hammersmith Apollo. It is a beat poem (‘Storm’) commenting on various pseudoscience topics – homeopathy, alternative medicine, etc. Very humorous, exactly the right tone (and not safe for work/children, especially after the halfway point). The sound quality is terrible, but text is provided throughout.
Update: The original video got removed/reuploaded or something. New link embedded and provided here.