Toronto rapper, joins AC/DC and Jack White in leading annual music festival. Azealia Banks, the Weeknd, Tyler, the Creator also among this year's lineup.
Joey Bada$$ fires off on security and other fist fights.
The rappers' Twitter beef escalates over an apology.
Plus, Pusha T and Wale celebrate Festivus.
Take a look at the Barb's headlining moments this year.
Crowds got rowdy with YG, Method Man, Beyoncé and more.