Britney pays tribute to Whitney at memorial concert

Britney Spears paid tribute to Whitney Houston at a special concert held in her honour last night.

The 'Toxic' singer - who was there to present a clip during the event - revealed she landed a record contract thanks to her performance of Whitney's song 'I Have Nothing', but said the show, entitled 'We Will Always Love You: A Grammy Salute to Whitney Houston', was a "solemn" occasion.