Kylie Jenner has celebrated her birthday by doing something crazy – shaving her head!

The teenage reality TV star showed off her new look on her Instagram account with the caption: “So this happened yesterday.”

Her new hairstyle features an under buzzcut beneath her bob, and we have to say, it looks quite edgy and cool on her!

Kylie has always had a much different style to her sisters, which we think is great.

The 17-year-old celebrated her birthday in style with friends and family…and even Justin Bieber!