Sir Paul McCartney has created a new internet craze, after encouraging fans to imitate a home video clip of himself and friends nodding along to one of his new tracks. The music legend was accompanied by Kate Moss' ex Jefferson Hack and a teddy bear, among others, in the 26-second clip to accompany Nod Your Head. Since it was released a host of people, including nursery children and dogs, have posted their own versions of the video on website YouTube. Even fellow ex-Beatle Ringo Starr supports the craze - adding his own interpretation to the site.