Spears was wearing a white shirt and black wide-leg trousers, and after she had sung a few lines Madonna turned her around and kissed her on the hand. The singers had made the headlines before when they kissed during the MTV Awards performance.
Spears' former boyfriend Justin Timberlake also joined Madonna on stage later on to sing 4 Minutes as a duet with the star.
Spears had been thought to be appearing at the MTV Europe Music Awards in Liverpool on the same night, and although she didn’t turn up she still managed to claim two gongs for act of the year and album of the year.
