Oi! Savage! Hegarty! Collins! Fink! How many times do we have to tell ya? If you ain't got a ticket, you ain't getting in - alright?

Captured on grainy, candid camera, London advertising legends pawn their Cannes Lions, get their assets out and don elaborate disguises to gain entry to an exclusive club - it looks like footage for a Soho-version of Soho version of Ibiza Uncovered has hit the web.

Oh, of course not - as we all know advertising creatives are pretty much the best behaved people you could meet. It's a viral for advertising organisation NABS, which provides support for people working in the industry. They'll be holding their annual Big Bash on March 19 at the Battersea Park Evolution, and the film features advertising heavyweights such as John Hegarty and Robin Wight trying to sweet talk their way into the event.

The idea was dreamed up by young creative team Rick Standley and Tom Skinner from CHI & Partners. "Based on the NABS Big Bash theme of prohibition, the idea is a simple one but it was entirely brought to life by the good nature and surprising acting abilities of some of the biggest names in advertising," says Standley.

In fact, Standley and Skinner also starred in the viral themselves - disguised by masks of Sir Martin Sorrell and Maurice Saatchi.

Director Kim Albright of Thomas Thomas admits being a little nervous at the prospect of filming such an intimidating, high-profile group. But she soon relaxed when it became apparent just how willing they were to play around for camera.

"Everyone was well up for taking the piss out of themselves, which was excellent," says Albright. "I wasn't expecting that. Tom, Rick (the creatives) and I suggested a few lines for them to deliver, but a lot of them just came up with their own stuff, which was much better as it just felt more genuine. Once they got warmed up, then things got even funnier. They started doing things that left me speechless. Like, Robin Wight actually running towards the door to knock it over, Tiger Savage offering her 'two tickets', and Damon Collins in full motorcycle gear pretending to be a pizza delivery man trying to get in."

And Standley agrees: "Although the prospect was initially quite daunting it was one of the easiest and nicest shoots we've ever done. Everyone was incredibly easy to work with and more than happy to be there. It also helped having a lovely director who people can't say no to," he says.

Albright has a hard time picking out her star performer: "Honestly, they were ALL brilliant. But I have to say, Damon makes me laugh time and time again," she says. "I think he was a little nervous at the start but once he got started, he was on fire. He was a natural! He really helped to give the film a narrative as he gradually got more and more irate as time went on (maybe he was just getting annoyed and wanted to go home)."

They may have been keen to goof around in the name of charity, but many of those involved were only able to give up fifteen or thirty minutes of their time, which meant the pressure was on to nail the performances quickly. But despite the tight timeframe, Albright says the biggest challenge was having so much funny footage to choose from for the final cut.

After all that clowning around, what has the reaction been like from the stars themselves? "The response has been really great. John - I mean Sir John - wrote saying he was laughing out loud, which put a smile on my face," grins Albright.

To view the spot click here.