Free Beer & Hot Wings: Kanye West Has Crybaby Moment at Bonnaroo Music & Arts Festival [Video]
And as the quotes indicate, we use the term performance very lightly.
Apparently, Kanye was butt hurt about something and decided to take out his anger on the Bonnaroo audience.
The crowd didn't really seem to react until Kanye claimed that "this is real rock and roll right here!" He then went into a song where he was auto-tuned, proving just how not "rock and roll" he really is.
Go away please, Kanye.
Source: Free Beer & Hot Wings