Deadmau5's Grammys 2012 prank: For a good time call Skrillex
Not to take away from his giant mouse head, but Deadmau5 (or Joel Zimmerman if you're his parents) was also sporting a t-shirt with the phone number -- (626) 319-1039 -- and the words "u mad bro?"
Those curious enough to call the number would have reached his fellow nominee Skrillex. Or, more likely, his voice mail.
"Haha @deadmau5 just wore my phone number on his fokin shirt on tv gotta retire this phone," Skrillex (or Sonny Moore if you're his parents, or old friends Kelly Osbourne and Paris Hilton) tweeted once he caught wind of the prank.