Miley Cyrus performs during the 2013 MTV Video Music Awards.
Miley Cyrus may be making headlines for her recent raunchy antics at the MTV Video Music Awards, but it's not the first time a former child star has shocked us.
We're not talking about the public meltdowns of Lindsay Lohan and Amanda Bynes, but career-defining decisions to try to shed an innocent image and become an adult star.
Cyrus is shaking off the legacy of Hannah Montana by twerking - dancing in a sexually provocative manner. Other child stars have used different tactics to make audiences sit up.
People such as Jodie Foster, Emma Watson, Scarlett Johansson, Mila Kunis and Natalie Portman have managed the transition to adult stardom with success and dignity.
Others, like Cyrus, have made calculated decisions to employ more startling tactics to prove their child-star days are behind them.
Five child stars who shocked us:
From high school to spring break
In the first five minutes of the US film Spring Breakers, Vanessa Hudgens assures us her squeaky-clean Disney days and G-rated High School Musical romances are over. The 2012 movie begins with her rebel college character smoking weed, then during a class she mimes a sex act - and it just escalates from there.
Spring Breakers also features child star Selena Gomez, although in a far less provocative role.
Mouseketeers gone wild
Don't assume Miley Cyrus was the first person to get tongues wagging on the annual MTV VMAs.
Both Britney Spears and Christina Aguilera, who started out on The Mickey Mouse Club, sang Like a Virgin and pashed Madonna at the 2003 MTV VMAs (although no one really remembers Aguilera doing it).
But even before that, back in 2001 at age 19, Spears changed her public image by swapping Catholic schoolgirl outfits and pigtails for risque dancing in hypersexualised songs such as I'm A Slave 4 U for her third album, Britney.
About a year later, Aguilera followed suit, but amped it up a notch, getting piercings, dying her hair black and dancing around in a bikini and chaps for her clip Dirrty. In case the name of her fourth album, Stripped, wasn't enough to bulldoze her "girl next door" image, she also changed her name to Xtina.
By 2007 though Spears had a real meltdown, when she checked into rehab, shaved her head and got some tatts.
Little girl lost
After winning hearts as Gertie in E.T. the Extra-Terrestrial and battling drug and alcohol addiction as a child, the first big role that got Drew Barrymore noticed as an adult actor was when she starred as a seductive, manipulative teenager in the 1992 thriller Poison Ivy.
Three years later Barrymore climbed onto talkshow host David Letterman's desk and flashed him for his birthday (with her back to the camera) and posed for Playboy - a copy of the mag was sent to her by Steven Spielberg, her godfather, for her 20th birthday along with a quilt and a note saying "cover yourself up".
Dan the man
During his 10-year stint as teen wizard Harry Potter, Daniel Radcliffe put a stop to any thoughts he wasn't a serious actor by stepping on to the stage in the London revival of Peter Shaffer's play Equus.
It generated a lot of media buzz, because the starring role (a young man obsessed with horses) required the then 17-year-old Radcliffe to appear in a nude scene. But he wowed critics with his performance and went on to appear in the Broadway run in 2008-2009.
A runaway only onscreen
Dakota Fanning made a name for herself as a precocious child actor in movies including I Am Sam, Man on Fire, War Of The Worlds and Charlotte's Web.
Although she had shocked audiences at 12 with a rape scene in Hounddog, the film that cemented her move to adult roles was The Runaways.
Based on a true story about the 1970s all-girl teen rock band, she starred as lead singer Cherie Currie, who descends into drug addiction. The film featured Fanning's much-publicised kiss with Kristen Stewart, who played Joan Jett.