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Beyonce performed Purple Rain with Prince to mark the 20th anniversary of his landmark song and film.

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Justin Timberlake said it had been "a rough week on everybody" after the Janet Jackson incident - but it did not stop him winning two awards.

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OutKast put on a colourful performance of their hit Hey Ya!, which helped them win the album of the year award.

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Christina Aguilera celebrated after winning best female pop vocal performance for her hit single Beautiful.

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Celine Dion was among the stars paying tribute to soul star Luther Vandross, who was too ill to attend the ceremony because he is still recovering from a stroke.

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Hip-hop group The Black Eyed Peas got acrobatic on the green carpet on the way into the ceremony.

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Coldplay denied Beyonce her sixth award by beating her in the record of the year category.

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Monk Tenam Lama accepted the Grammy for best traditional world music album for Sacred Tibetan Chant on behalf of the Monks of Sherab Ling Monastery in northern India.

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Beyonce also put on a lavish show to sing Dangerously In Love 2.

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Veteran rock star Sting sang with the winner of this year's award for best reggae album, Sean Paul.

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John Lennon's widow Yoko Ono spoke during a tribute to The Beatles to mark the 40th anniversary of their arrival in the US.

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R&B star R Kelly, who is awaiting trial on 21 child pornography charges, turned up wearing a black mask.