Since bursting into the pop world with her hit song "I Kissed a Girl" in 2008, Katy Perry's had a variety of hair hues. From blue and pink streaks, to bright blue wigs, Katy's experimented with most colour combinations but has often returned to jet black. Many might be surprised to learn that she's actually a natural blonde though, a colour she's gone back to now, albeit by going red so as not to damage her hair first. Appearing on MTV News yesterday, the "Firework" singer debuted her new caramel colouring. Which hair colour do you prefer on Katy?