Poll: Are Miley Cyrus's antics a bad example to set to our children?

With provocative costumes, sexually explicit performances and language that strays towards that of the bar room, Miley Cyrus has violently strayed from her Disney Hannah Montana persona.

Cyrus shocked the audience as she hit the stage in the UK last night, on a tour that brings her to the Midlands later this month.

A large section of the thousands who watched the star at the O2 Arena last night were young girls, for whom Cyrus is an idol because of her Disney role.

They were joined by parents who had to endure a night in which the 21-year-old did everything she could to shock and offend.

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Cyrus will be at Birmingham's NIA on May 16, where the audience will again be filled to the brim with young girls for whom the American is a role model.

While many of her hordes of fans admire her "raw honesty", parenting groups have spoken in the past about her influence over their children.

Thousands of youngsters were allowed to stay up late on a school night to go to the UK leg of Cyrus' Bangerz tour at London's O2 Arena last night.

Cyrus' music, set and costumes left the fans breathless during the show – which she opened with a series of expletive-filled outbursts.

She also decided it was appropriate during the show to discuss drugs in front of her young crowd. And she cavorted on stage in skimpy outfits, her behaviour verging on the sexually explicit.

Even the backdrop for her show has the sign 'Parental Advisory' emblazoned on it.

Cyrus took to the stage in a dollar-print leotard and according to those who saw the show, began with the lewd gestures within 10 minutes of opening it.

Sources say she drank water and spat it on to her adoring crowd before asking audience members to kiss members of the same sex, showing them on a huge screen.

Audience members say she told the crowd she "hoped they were all drunk and on loads of pills", while costume designers had to come on stage to fix her corset when it came lose while performing an explicit dance.

Cyrus has already exasperated her father, country singer Billy Ray, with her behaviour since she departed from the hugely successful TV show Hannah Montana.

The show portrays her as an ordinary schoolgirl who has a secret double life as a pop singer.

Cyrus has been intent on shedding her good girl image since embarking on a music career in real life.

She recently courted controversy after hitting back at claims she had taken a drug overdose after a bout of ill health threatened to disrupt the UK leg of her Bangerz tour.

The Wrecking Ball singer used a brief, expletive-laden press conference to boast about her fine physical health.

Many young fans last night took to Twitter.

And her antics on stage appeared to make an impression on her young fans.

SophieeHarriss wrote: "That was honestly one on the best nights of my life, I love @MileyCyrus so much".

But parents escorting their children to the show were less than impressed.

Claire Dyer, 37, who was at the 02 with her six-year-old daughter Emily, said: "I don't think Miley is a very good role model. Some of the girls here are dressed very indecently. I would not want my daughter dressed like that at her age."

One father, attending with his 15-year-old son, said of the content: "It would be different if it was a good show. But it's not even a good show."