By Mail Online Reporter
Birthday girl: Hayden Panettiere leaves the Cavern Club in Ann Arbor, Michigan on Saturday night after enjoying a surprise 21st birthday party thrown by her Scream 4 cast mate David Arquette
Hayden Panettiere's Scream 4 cast mate David Arquette threw a wild surprise 21st birthday bash for the actress on Saturday night.
Mixing with the Hollywood elite at Panettiere's party were Oompa-Loompas, fire eaters, stilt walkers, seven foot tall chickens, burlesque dancers and even sheep.
At a diminutive 5'1" Hayden Panettiere is used to looking up to people, but for once she got the chance to be head and shoulders above the rest, as she partied with some perfectly proportioned little people dressed as the characters from Charlie And The Chocolate Factory.
Arquette took over The Cavern Club, a huge four story building near the movie's set in Ann Arbor Michigan and filled it with crazy performers from the hit Las Vegas show Beacher's Madhouse.
A 'Happy Birthday Hayden' fireworks display went off as the local fire department paraded up and down the block.
And Panettiere was presented with a birthday cake in the shape of a giant blue dolphin - Panettiere is an outspoken activist and campaigner against dolphin hunting.
Beacher's Madhouse is a long running fixture in Vegas, famed for it's outrageous comedy acts and anything goes atmosphere.
The show is a favourite with young Hollywood and Paris Hilton, Nicole Richie and Lindsay Lohan have often been spotted in the audience.
Little and large: 5'1" Hayden Panettiere has been dating 6'6" Wladamir Klitscho for over a year
But one person that was absent from the evening's festivities was Panettiere's boyfriend, Ukranian heavyweight boxer, Wladimir Klitschko.
The 6'6" 34-year-old was locked down at a training camp preparing for his September 11 fight against Nigeria's Samuel Peter in Frankfurt, Germany.
However, Panettiere's Scream cast mates, and brother Jansen, were on hand to keep her company.
As was the Mayor of Ann Arbor, John Hieftie, who presented Panettiere with the key to the city for her charity work.
Scream 4 brings back past stars of the franchise, David Arquette and Courtney Cox, who met and fell in love whilst working on the first instalment, as well as Neve Campbell who reprises her role as Sidney Prescott.
In addition, it introduces new cast members such as Panettiere, Emma Roberts, Adam Brody and Rory Culkin.
On set: David Arquette reprises his role as Sheriff Dewey Riley on Scream 4 whilst Panettiere plays 'nerdy film geek' Kirby Reed
Panettiere has been in the spotlight since she was eleven years old, when she starred in Disney's Remember The Titans, though she had previously appeared in two soap operas before that.
She reached a wider audience though when she portrayed cheerleader, Claire Bennet on the hit show Heroes.
In December 2007, Panettiere started dating her much older co-star Milo Ventigmiglia - the couple split in February 2009.
She started dating Klitschko in December 2009. She's gushed about him: 'I’ve never had an athlete as a boyfriend before, and it’s an exciting experience.
'I think it’s awesome that he’s so athletic, but I’m most fascinated with his intelligence. He’s unbelievably clever.
'Even though I'm small, I can dish it out too. But I have to admit, I feel really protected with such a strong man by my side.
'Now, whenever someone's bugging me, I say: "Look out, my boyfriend is a boxer!"
source :dailymail