Zedd: if its cool with you, I'm planning on getting naked and run 7 laps around your cube tonight when you're on.
Ultra 2014: Deadmau5 was brought on to replace Avicii, who was suffering from a blocked gallbladder. He said he would "[throw] some random bullshit together", an Instagram photo revealed possible Zedd antics, and he also dissed Martin Garrix earlier in the day to continue his war against "mainstream" dance music.
During the show itself, he plays an edit of Martin Garrix's "Animals" set to the tune of "Old McDonald Had a Farm" ("Fuck, I love this track!"). Then, just when you thought it couldn't get any funnier, he then proceeded to mix the intro of Avicii's equally overrated song "Levels" into the opening of "Ghosts 'n' Stuff"
After the show, he got into a feud with Tiesto (who closed the night before) on Twitter, accusing him of playing said Avicii song "sarcastically" because he was unable to attend. His response? "How does one play a track sarcastically? Am I supposed to sneer while hitting the sync button? Or is that ironic?"