Beyonce live on the X-Factor final!

They kept the best guest to last this year on X-Factor, Queen Bee performed her #1 song If i were a boy live on X-Factor a few minutes ago on the results show just before they announced Alexandra won,

Beyonce also sang a duet with Alexandra, They sang Listen as its Alexandra's favourite song (Its her 3rd time to sing it on X-Factor!) and they did a AMAZING job, everyone taught it might be a bad idea cause Beyonce would make her look bad cause she would out sing her but Beyonce let Alex do her thing and made sure Alexandra got to show off her voice! awww!!