Hollywood actress Gwyneth Paltrow showed off her vocal talents at a charity karaoke show in London - after a $90,000 bid prompted her to take to the stage.

Paltrow was taking part in the Karaoke With The Stars event on Thursday night at the city’s famous Ronnie Scott’s jazz bar - helping raise money Palestinian refugee children.

Amy Winehouse has tested negative for deadly disease tuberculosis - with doctors indicating the star is suffering from a chest infection.

The Back To Black hitmaker was admitted into a private clinic in Marylebone, London on Monday after she collapsed in her home in the British capital.

It had been reported the star may have contracted the infectious condition, which is said to be common among drug addicts and heavy drinkers, as they have a reduced immunity and are more vulnerable to infection.

Fears for the health of Amy Winehouse are mounting after it was reported doctors believe the star has contracted tuberculosis.

The troubled singer was admitted into a private clinic in Marylebone, London on Monday after she collapsed in her home in the British capital.

Tests to determine the cause of the collapse have so far proved inconclusive, but on Tuesday, the 24-year-old was allegedly warned by health experts her alleged drug addiction will end her life - unless she manages to kick her habit once and for all.

Singer Amy Winehouse underwent medical scans and tests in a London hospital on Thursday, three days after she collapsed at home.

The troubled star was admitted into a private clinic in Marylebone on Monday after she fainted in her London home.

Tests to determine the cause of the collapse have so far proved inconclusive, but on Tuesday, the 24-year-old was allegedly warned by health experts her drug addiction will end her life - unless she manages to kick her habit once and for all.