Beyonce Performance Interrupted by Surprise Proposal During Formation World Tour St. Louis

Stream "Single Ladies" on iTunes: http://tiny.cc/7jpiqy Filmed on Sony HD Handycam: http://tiny.cc/deriqy Beyonce Dance Captain Ashley Everett gets Engaged at Formation World Tour St. Louis to dancer boyfriend John Silver during performance of "Single Ladies." Read more: http://tiny.cc/uruqey Shot by Chesley Waddle / Radio One