The 'Hairspray' actress, who has joined stars Miley Cyrus,Avril Lavigne and Lady Gaga with her act, took to Twitter to show her new look, reported E! online.
"No more old photos! This is the new me! I love it!," she tweeted.
Earlier this month, the 27-year-old former child star tweeted pictures of previous hairstyles and lashed out at hairstylist from the John Barrett Salon at Bergdorf Goodman.
"I had to shave my head because of hair damage from someone at John Barrett. So, I'm not loving my paparazzi pics for a few years!," she posted.