Dame Helen Mirren, 70, shows us how to grow old disgracefully as she sticks her tongue out in a school-inspired ensemble

Dressed in a long skirt, school tie and blazer, 70-year-old Dame Helen Mirren clearly had no intention of acting her age.

Proving old habits die hard, the Oscar winning actress posed for the camera with her tongue out and flashed a crude V-sign for good measure.

Just days after her vulgar behaviour was placed under the spotlight following a foul-mouthed anecdote on stage, the star, who became a household name after playing the Queen, revealed her less than regal side once more.

Showing her edge: Dame Helen Mirren opted for a much more fun, laid back look as she attended the  School Of Rock musical opening night on Broadway on Sunday night

Sealed with a KISS: The 70-year-old Oscar-winning actor posed by sticking out her tongue like Gene Simmons as she attended the event held at the Winter Garden Theater in the Big Apple

This time Dame Helen paired up with composer Lord Lloyd-Webber at the School of Rock musical opening night on Broadway on Sunday night.

Her mock school uniform had put her in a playful mood as she joined an array of celebrity guests in the audience for the first night of Lord Lloyd-Webber’s hit musical at the Winter Garden Theatre in Times Square, New York.

It was just last week that Dame Helen left an audience aghast after she told how she feared her husband might not fancy her any more after he saw her playing Her Majesty in the movie The Queen.

Dynamic duo: She joined legendary British composer Andrew Lloyd Webber at the event as he wrote the music for the show

The expletives in her acceptance speech at an awards ceremony in New York were bad enough.

The crassness of the subject and lack of respect was almost worse.

‘I have to tell you a story about f****** the Queen,’ she told the audience.

Rock on: Even the 67-year-old composer got in on the act

‘When The Queen was first screened at Venice, I’d never seen it before, and neither had my husband Taylor [Hackford].

‘In the first scene I’m in full regalia, and I turn to the camera and there’s silence in the cinema.

And my husband lets out this huge laugh. So I lean over to him and say, “Darling, do you think you’ll ever f*** me again?”’

Who knew they were friends?: Dame Helen joined actress Sarah Paulson on the red carpet

True romance?  The 40-year-old actress has been linked to fellow actress Holland Taylor (far left), as the 72-year-old actress has been recently revealed to be in a relationship with a woman

Rather excruciatingly, she added: ‘Between you and me, he has.’ Dame Helen won an Oscar for playing Queen Elizabeth II in the 2006 film The Queen and has since reprised the role in the hit play The Audience, staged both in London and on Broadway.

Her eyebrow-raising speech came after Hollywood star Robert De Niro presented her with a career tribute award at the IFP Gotham Independent Film Awards in Manhattan and, in somewhat dubious taste, joked about his attraction to her.

Meanwhile, the Queen actress was quite the social butterfly at the event as she hung out with several other stars ahead of the Broadway debut including actress Sarah Paulson.

Fantastic four: Sarah laid her head on the shoulder of actor Neil Patrick Harris who was in attendance with his husband David Burtka

Chic: The American Horror Story actress wore all black including long fur coat, trousers and leather booties

Storied career: The two-and-a-half men actress looked stylish in a black coat with a designer leather backpack

Loved up: The two actors looked happy to have a night on the town

Dame Helen definitely looked friendly with the 40-year-old American Horror Story actress as they flashed smiles while posing for a photo together at the event.

Sarah was joined by Two And A Half Men star Holland Taylor at the event as there have been rampant rumours they are dating after it was recently revealed the 72-year-old actress is in a relationship with a woman.

The 12 Years A Slave actress did nothing but add fuel to the fire that night as she gushed about The Truman Show actress, calling the older woman a 'genius,' as she shared an image of a ticket to Ripcord for 2 p.m. on Instagram that afternoon 

Scintellating: Orange Is The New Black actress LaVerne Cox also made an appearance

Taking the plunge: The 31-year-old actress wore a low-cut black number with a thigh-high split as she kept warm with a golden fur

Big night: Longtime journalist Barbara Walters made her way to the gala

Dark side: Joan Collins showed off her rocker look with a sequined biker jacket

Ready to rock: Stevie Nicks was in attendance with Fleetwood Mac bandmate Mick Fleetwood

The pair were joined at the School Of Rock premiere with Neil Patrick Harris and David Burtka as they enjoyed a night at the theatre together.

School Of Rock is a rock musical with music written by Andrew Lloyd Webber which is based off the successful 2013 film of the same name starring Jack Black.

The Broadway show will continue on Tuesday with dates at the Winter Garden Theater through 12 June 2016. 

Coming out party: 19-yea-old Shanice Williams was in attendance as she was praised for her live performance on The Wiz earlier this week

Lovely in lace: Elizabeth McGovern was also in attendance

Just the two of us: Film producer Harvey Weinstein and his young wife Georgina Chapman were also in attendance

Relaxed: Blogger Perez Hilton also arrived for the event in a double breasted coat

Reunion: The original cast from the 2003 movie School Of Rock, which the play is based off of, were in attendance for the big debut