VIDEO : Kanye West Continues The Beef With Taylor Swift At Drake Concert

Kanye West made a surprise appearance during Drake 's concert at the United Center in Chicago. The two stars performed their collaboration, "Pop Style,"and then West did his own song, "Famous." West told the crowd, quote, "All I gotta say is, I am so glad my wife has Snapchat, because now y'all can know the truth and can't nobody talk crap about 'Ye no more.