Madonna will introduce Masha and Nadya, two members of Russia's Pussy Riot art collective, at Amnesty International's Bringing Human Rights Home concert taking place at Barclays Center in Brooklyn on Wednesday February 5, it was announced today by Amnesty International.

"I am honored to introduce my fellow freedom fighters Masha and Nadya from Pussy Riot. I have admired their courage and have long supported their commitment and the sacrifices they have made in the name of freedom of expression and human rights," commented Madonna.

Tickets are on sale from Ticketmaster. Other confirmed acts include Imagine Dragons, The Flaming Lips, Ms. Lauryn Hill, Tegan and Sara, The Fray, Cold War Kids, Colbie Caillat and Cake. Masha and Nadya were imprisoned for their participation in the Pussy Riot art collective. Hundreds of thousands of online actions by Amnesty International supporters helped bring about their freedom.

Madonna, a longstanding defender of the Pussy Riot art collective's right to speak out in defiance of restrictions in their homeland, is part of a star-studded tradition of prominent artists using the power of music to articulate their support for human rights on behalf of Amnesty International.

More information on the upcoming concert can be found at http://www.amnestyusa.org/Feb5concert. Follow #AmnestyConcert for live updates.