Why she made a Музыка video for "Halo"? I guess it's because "Halo" is the fourth single from her album I am...Sasha Fierce. I'm not sure if that's the answer you're looking for, did Ты mean something else?
because it is a great ballad and was a strong song to bring out as a single in the charts. I think it reached no.2 aswell that shows also that it was a great choice
