The rock star has a new man, a new ring on her finger and now a new 'do too!

YIKES!!!

Avril debuted a very Miley Cyrus look at New York Fashion Week recently... a half shaved number, complete with metal studs and green and pink streaks!

"Tonight I got a little wild with my hair dye in my hotel room, I've always dyed my hair and had fun with pinks and greens, but this evening I was celebrating Fashion Week, here in New York, and the fact that I'm having a runway show, which is a major deal for me and means a lot.  I just got dye happy and dyed my whole hair blonde and then went crazy with these colours and studs." 

Alrighty then...

Does this hairstyle suit Avril?