The queen of pop was heard during a trip to Haiti screaming the name of the midfielder to her Chilean fans.
The popstar is in Haiti this week as part of a United Nations humanitarian visit to see what progress the country has made since an earthquake hit its capital in 2010.
Beyonce was wearing a t-shirt with BeyGood written on it.
The wife of rap legend Jay Z was greeted by a group of Chileans who shouted 'Chile' at arrived with a privae pane.
To acknowledge and let them know she knows some things about the country, she screamed 'Arturo Vidal' at them which was greeted with a huge cheer.
Vidal and Arsenal forward, Alexis Sanchez are the mos popular footballers in the South American country.