Geri Halliwell and Trinny Woodall were among guests at the wedding of socialite Poppy Delevingne today.

Delevingne - sister of model and aspiring actress Cara, who acted as a bridesmaid - tied the knot with James Cook at S t Paul's Church in Kensington, London.

Halliwell was accompanied by her Formula One boss boyfriend Christian Horner as she attended the ceremony.

Composer Andrew Lloyd Webber gave his help by arranging for performer Anna O'Byrne - who appeared in the Australian production of his musical Love Never Dies - to sing the title track to accompany the signing of the register, as it is Poppy Delevingne's favourite song.

The church choir also performed Lloyd Webber's Pie Jesu during the service.