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Singer Nelly Furtado has said that she will give away $1 million (£615,000) she was paid to perform for the family of Libyan leader Muammar Gaddafi.

The star said on Twitter she had given a private 45-minute show for Gaddafi's "clan" in 2007 at a hotel in Italy.

The 32-year-old did not say which charity she would donate the money to.

Meanwhile, Beyonce has revealed money she earned from a 2009 gig was donated to charity when it emerged the promoter was linked to the Gaddafi family.

In a statement the star's publicist said: "All monies paid to Beyonce for her performance at a private party at Nikki Beach, St Barts on New Year's Eve 2009, including the commissions paid to her booking agency, were donated to the earthquake relief efforts in Haiti, over a year ago."

Once it became known the third party promoter was linked to the Gaddafi family, the statement went on, "the decision was made to put that payment to a good cause".

Another artist, US singer Usher, is reportedly facing music industry calls to surrender fees earned from performing for Gaddafi's family.

According to , the singer received an undisclosed sum for performing at the same party as Beyonce Knowles in 2009.

Mariah Carey, the magazine went on, accepted $1m to perform for Gaddafi's son Muatassim in 2008, while rapper 50 Cent gave a show for him at the 2005 Venice film festival.

On Thursday, Carey said she had been "naive and unaware of who I was booked to perform for".

"I feel horrible and embarrassed to have participated in this mess," she said in a statement. "This is a lesson for all artists to learn from."

Managers for Usher and 50 Cent have so far declined to comment.

Colonel Gaddafi is facing international condemnation for using violence to quell a popular uprising in Libya.