£250k birthday bash: £60k marquee, Cirque du Soleil and Professor Green The Ibiza-themed party was thrown earlier this month to celebrate an 18th birthday The teenage sisters enjoyed a private performance from Hackney rapper Professor Green Party masterminded by Elton John and Simon Cowell's favourite event planner, Steven Duggan The marquee cost £60,000 and the event also featured fire-breathing models and a fireworks display Party-goers drank champagne and bespoke cocktails including a version of the Porn Star Martini For most of us, turning 18 means a house party with friends, a slap-up supper with family and a thoughtfully chosen gift. But for a pair of Essex sisters, a celebratory dinner just wasn't enough. Instead, their generous parents lavished an astonishing £250,000 on a birthday extravaganza that came complete with fireworks, Cirque du Soleil acrobats and a performance by rapper Professor Green. Guests arriving at the girls' Essex mansion were met by fire-breathing models before being chauffeured through the grounds of the house by golf buggy to a £60,000 marquee, where along with an appearance from the Hackney musician, party-goers were treated to a fireworks display and cocktails including the Porn Star Martini - a blend of Krug champagne, Ketel One vodka and Passoa passion fruit liqueur. Extravagant: Guests at the lavish 18th birthday party were greeted by fire-breathing models and were driven to the £60,000 marquee in golf buggies Theme: Although the party had an Ibiza feel, props included carousel horses (pictured) and a chocolate fountain that dispensed 40 different types of sweet VIP: Duggan created an exclusive Ibiza nightclub for the teenage sisters complete with a roped off VIP area and acrobats from Cirque du Soleil The Ibiza themed bash was the work of A-list party planner Steven Duggan, who counts Simon Cowell among his clients and has also worked for Elton John. According to Duggan, the event was one of the most extravagant he has worked on to date and took four people working around the clock for a month to pull off. 'We had more than 90 props of all different shapes and sizes in the marquee, from giant carousel horses to lollipops, large Venetian masks and candy cane rolling hills with chocolate fountain tables that offered 40 different types of sweet,' he revealed. The marquee structure was designed in three wings with a central cone feature to look like a glasshouse and the cocktails were a mix of Porn Star Martinis, Mojitos and Sex on the Beach, along with champagne on arrival which was served by glamorous models. And a party like this doesn't come cheap. The marquee alone cost £60,000 while Professor Green and DJs Ironik and Scorcher, all of whom performed on the night, command five-figure appearance fees. Carnival: A bevy of colourfully dressed acrobats were on hand to entertain guests during the party, which took place in Essex last month Sweet tooth: Inside the lavish marquee were chocolate fountains that dispensed 40 different kinds of sweets and chocolate Thrilled: The glitzy dance floor and quirky props, including a popcorn cart and gigantic lollipops, delighted the lucky teens Wonderland: The specially designed marquee had to be constructed in three separate parts and cost a staggering £60,000 to create Spectacle: Duggan says he plans between three and four similar events each year, although not all feature the Cirque du Soleil acrobats that appeared in Essex 'Parents are investing more into their teens parties at the moment,' adds Duggan who says he's asked to do between three and four large scale teen parties a year. I guess they like to see the delight on their faces and it is nice to celebrate in style. Lots of clients say to me: "the bigger and more extravagant - the better please!" And the parents of the lucky Essex teens aren't the only ones happy to splash out. Another of Duggan's parties made headlines during the summer after it was revealed that he had masterminded a £70,000 first birthday party for a set of twins that featured an Alice in Wonderland meets Peter Pan theme and boasted a troupe of top-end children's entertainers. Along with props and special lighting, the bill also covered the cost of a full buffet, complete with beautifully decorated treats, and a vast Alice in Wonderland tiered cake. So is it really worth splashing out so much on a single event? Unsurprisingly, Duggan is sanguine. 'Everybody spends their hard earned money the way they wish and I am a firm believer in that,' he says. If they choose to create a magical experience in their garden instead of a once in a lifetime sunshine holiday, then so be it! That is what they are happy doing. For more information and pictures, see stevendugganevents.com Main men: Rappers Chipmunk (left) and Professor Green pose with planner Steven Duggan (centre) backstage at the incredible party Party time: Big name DJs Ironik and Scorcher take to the decks - much to the delight of guests attending the spectacular 18th birthday event Bespoke: The bar served a mixture of champagne and specially selected cocktails, including Sex on the Beach and Porn Star Martinis