This is so sad.
Royal Parks is asking the real Slim Shady to please NOT stand up.
The bosses who decide who performs in London's Hyde Park have deemed Eminem's music too "offensive" and "unsuitable" for performance.
Thus, Marshall Mathers is banned from the park's British Summer Time festival this month.
Royal Parks felt that his music might offend park goers not there to see his concert, and those living in surrounding areas!