Prince Harry is the person Britons would most like to take to a summer party.
The flame-haired royal - who is known for his partying antics - topped a poll with 16 per cent of the vote, beating off competition from Mayor of London Boris Johnson (11 per cent), according to new research from Cadbury Heroes.
Pippa Middleton - the sister of Britain's Duchess Catherine - was third on the list with nine per cent, while Dame Helen Mirren finished above David and Victoria Beckham in the One Poll survey.
Claudia Miceli, Brand Manager at Cadbury, said: "We've all been met with the confusing line telling us to just bring ourselves, but as our new research shows this is another classic British trait of not revealing what you actually mean for fear of appearing impolite.
"Cadbury Heroes are the perfect gift to take when you're told not to bring anything and with the weather set to continue to scorch they are the perfect thing to bring to upcoming BBQs and picnics."
Harry is no stranger to having a good time but he caused controversy last August when naked pictures emerged of him partying and playing strip billiards in Las Vegas.
Ultimate Celebrity Party Guests:
1. HRH Prince Harry (16%)
2. Boris Johnson (11%)
3. Pippa Middleton (9%)
4. Dame Helen Mirren (8%)
5. David and Victoria Beckham (7%)
6. Sir Elton John & David Furnish (3%)
7. David & Samantha Cameron (2%)
8. Joey Essex (2%)
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