This hairstyle is called knotted ponytail. It is a variation of the regular ponytail, and it is so lovely. It looks really good on young ladies.
You think it is hard to make it. It turns out that you can do this easily if you can make the first stitch of tying your shoes.
Please watch this knotted ponytail hair tutorial from the cute girls hairstyles. Enjoy your new hairstyle.