Peaches Geldof's efforts to impress a mystery male companion fell flat after she was snubbed by rappers Jay-Z and Pharrell Williams.

The 19-year-old was denied entry to the stars' private dinner last night, despite desperately touting the old 'Don't you know who I am?' line. 

Pharrell was at the Maddox club after playing a gig for iTunes at KoKo in Camden, North London. 

Snubbed: Peaches Geldof and a mystery man tried several times to gatecrash a private dinner for Pharrell and Jay-Z

Peaches hoped to join him, but was refused entry to the Mayfair club's dining area.

Our spy said: "It was hilarious. Peaches had met two girls at the gig and jumped in a cab with them because they had access to the dinner.

'But inside the club, she was stopped by the bouncers who told her she wasn't allowed in. She crowed, "Don't you know who I am? I'm Bob Geldof's daughter". 

'But the bouncers just didn't care.'

Take note: Peaches looked rather embarrassed as she leaves with her companion

A determined Peaches reportedly then tried to run past security during the dinner, but was yet again refused entry.

A fellow party-goer said: 'She kept trying to get in. It was very embarrassing for her.'

Meanwhile, dad Bob was at Uma Thurman and Arpad Busson's engagement party in Chelsea. 

VIP: Bouncers refused to let Peaches party alongside Pharrell and Jay-Z