Very well done, Beyonce.
In the following concert footage, taken from a stop on her "Mrs. Carter Show" tour in Perth, the superstar leans over to a 13-year old girl in the front row named Sophie. Who happens to be blind.
Together, Beyonce and Sophie take turns singing "Irreplaceable" in front of 15,000 fans,. It's a special moment and you can watch it here:
She's the best.