Both have round heads. Both have prominent mouse ears in
silhouette. We haven't seen too many actual mice who look like
that, but we all recognise the image and this mouse fight comes as
no surprise to anyone.
deadmau5 (pronounced Dead Mouse) is an international DJ smashing
out tracks such as "Professional Griefers" with 9 million
YouTube views. Basically, a big time musician.
In the other corner is Disney, famous for Goofy, The Little
Mermaid, that stupid "Let it go" song and of course the
most famous mouse ever – Mickey.
deadmau5 is in a scrap with Disney over his attempt to trade
mark his image of a mouse which he uses everywhere, including on
stage. Disney objected, to which deadmau5 responded "Disney
thinks you might confuse an established electronic musician /
performer with a cartoon mouse. That's how stupid they think
you are". Good one deadmau5.