Stars speed for charity
The stars zoomed in to help out a charity and drive fast cars at a Formula One bash in aid of Great Ormond Street Hospital.
Producer and hip-hop star Pharrell Williams was delighted to be around the super-charged vehicles and revealed that he has been an F1 fan since he was a child.
But the real reason he was there, along with fellow celebrities Simon Webb and Jamelia, is to raise money for a new heart and lung centre for the hospital.
Pharrell chatted and joked with one of the sport's biggest stars - British driver Jenson Button.
Unfortunately, Lewis Hamilton couldn't make the event after suffering an accident.
He is known to be a fan of Pharrell, who played with his band N.E.R.D later in the day.
Basement Jaxx also lent their voices and decks to the occasion and party-goers had the chance to hop in the front seat with the enigmatic Stig from Top Gear.
The newly wed Jamelia, sparkling in her gold dress admitted she was just there for a good cause and wouldn't normally be seen gracing the stands of Silverstone.
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