Video: Beyoncé performs new song, XO (LIVE & FOR THE 1ST TIME) at Mrs.Carter World Tour

Beyoncé surprised everyone this week when she dropped her entire new visual album online without press, and now she's performed one of those songs LIVE for the first time.
During her concert  in Chicago yesterday Sun.Dec.15, she treated fans to a performance of the track 'XO' and told the crowd, “I’m gonna sing you a song which is a brand new song. It hasn’t even been out for 24 hours. I’m gonna sing this for y’all because it was written for y’all.”