The Grammy award winner's renouncement comes after similar announcements from singers Mariah Carey, Nelly Furtado, and Beyoncé, all of whom were revealed to have performed at private concerts linked to the Middle Eastern leader, who has faced open revolt and major political uprisings since February.
"I am sincerely troubled to learn about the circumstances surrounding the Nikki Beach St. Bart's event that took place on New Year's Eve 2009," Usher said of the concert, at which he appeared alongside Beyoncé but did not perform. "I will be donating all of my personal proceeds from that event to various human rights organizations."
Usher has already begun the process, having made a donation to Amnesty International, the AP reports. The exact size of the donation is not known.
The New Year's Eve gig was reportedly for Moammar's fourth son Muastassim, who an unnamed music industry source told MTV News has a history of throwing lavish parties "jammed" with supermodels.
Beyoncé, who sang at the event, donated all proceeds from her performance to the Clinton-Bush Haiti Fund, established in the wake of the Haitian earthquake.
"All monies paid to Beyoncé 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 for Haiti over a year ago," the "Halo" singer's publicist said in a statement to The Huffington Post. "Once it became known that the third-party promoter was linked to the Qaddafi family, the decision was made to put that payment to a good cause."
Singer Nelly Furtado tweeted February 28 that she plans to make similar amends.
"In 2007, I received 1million$ from the Gadhafi clan to perform a 45 min. show for guests at a hotel in Italy," she tweeted. "I am going to donate the $."
The leader of Libya since a successful military coup in 1969, Gadhafi has reportedly lost control of much of his country as a result of widespread uprisings. The United Nations voted unanimously to refer the dictator to the International Criminal Court for crimes against humanity.