A pesar del título del link, son las 5 mejores ;)
http://www.billboard.com/column/viralvideos/10-worst-national-anthem-performances-ever-1004101877.story?page=3#/column/viralvideos/10-worst-national-anthem-performances-ever-1004101877.story?page=3 (http://www.billboard.com/column/viralvideos/10-worst-national-anthem-performances-ever-1004101877.story?page=3#/column/viralvideos/10-worst-national-anthem-performances-ever-1004101877.story?page=3)