This is a caricature by Fraga, a great Brazilian caricaturist. I have already published Marcelo Rampazzo here and the same happened again. I found this work at Fraga's blog and I left a comment telling him I have published it without permission. This is a caricature he did for a newspaper for an article about Bob Dylan's Christmas Album that was launched and the money will be donated to charity.
This is a good way to wish you all Merry Christmas!