Deadmau5: the mouse-headed guy

Hey everyone
So can you can ask: "Why do you have a mouse on the background?"
Well he is Deadmau5. If this does not mean nothing you and you are like "Who the hell is Deadmau5?", step up and scroll down.

That mouse-headed guy is one of the best music producers in the world. You could call him a DJ but he doesn't like this term and so he kill you if you do so. I'm half-kidding. Still he surely makes great mixes.

The name "deadmau5" originated when Zimmerman claimed to have found a dead mouse in his computer while replacing his video card. He discussed this with chat room users and became known as "that dead mouse guy." The nickname "Dead Mouse" was too long for the IRC character limit, and was then shortened to deadmau5.
His mixes are widely used everywhere even if you don't know it is Deadmau5 song. He may not be mainstream and still he does a great job.

Now, how famous is this guy? Enough to present a mobile phone on London.