Long, blonde hair 1
At the very beginning of the season, Aguilera, pictured here with her team's other celebrity mentor Billie Joe Armstrong, sported her normal, long, platinum blonde locks in waves.
Red braid 2
Later on, Xtina sported red dip-dyed hair which she wore in a side braid with a glittery hair piece.
Blue dip-dyed 3
Then, Aguilera switched her red braid for blue ends, which she topped with a fedora.
Straightened blonde hair 5
Christina returned to blonde, but this time her long, light locks were straightened and she was also sporting bangs.
Short blonde bob 6
When she performed alongside one of her team members, Dez Duron, Aguilera was still blonde with bangs, but her hair was styled as a short bob!
Pink streaks 7
Apparently, Xtina got bored of having one-note hair because she added pink streaks and some voluminous curls!
Bright pink bob 8
During the live top 6 results show, Aguilera was back to all-pink hair, this time a bright pink short wig.
Pink streaks and bangs 9
On the latest episode, Aguilera went back to pink streaks and bangs!