Alicia Keys attends the panal “HIV Priorities for Positive Change – In Womans Words” during the UN conference on AIDS at the United Nations on June 7, 2011 in New York City

*Alicia Keys attended a United Nations conference Tuesday in support of the fight against AIDS.

The singer, who has long championed the cause, spoke at an event titled HIV Priorities for Positive Change, which took place ahead of today’s crucial discussion between world leaders to outline their plans for battling the global pandemic over the next decade.

Keys tweeted her followers to take part this morning’s March to End AIDS, a peaceful protest that began at Manhattan’s Bryant Park and ended outside the U.N. headquarters, where the General Assembly meeting was due to take place.

“World leaders r (sic) meeting in Nyc 2day (sic) to adopt a new declaration to reaffirm commitments to fight global Aids. Join the march in Bryant Park!” she posted on Twitter.

Check out photos of Keys at the United Nations Conference On AIDS below.

Keys and singer and UN AIDS Internatioinal Ambassador Annie Lennox attend the panel "HIV Priorities for Positive Change - In Womans Words" during the UN conference on AIDS at the United Nations on June 7, 2011 in New York City