03/18/2010 05:12 am ET | Updated May 25, 2011

'Hair' CLOSES, Lady Gaga Goes To DC For National Equality March

The National Equality March happens this Sunday in Washington, D.C., and if you have tickets to see 'Hair' on Broadway, you'll have to exchange them. In a costly and unprecedented move, the producers canceled Sunday's matinee so that the entire cast can join the march.

'Hair' producer Oskar Eustis released the following statement:

"The Public Theater has always aspired to make theater that matters, that speaks to the great social issues of our time. HAIR has never been just a show; its message of change and hope and inclusion is one we try to live, not just preach. This is the moment when we need to recognize the right of all citizens, gay and straight, to have their love and their unions acknowledged by the state. We are proud to join with Cleve Jones and the National Equality March in support of gay marriage. Peace now! Equality now! Justice forever!"

The show's star, Gavin Creel, first heard about the march in May at a rally to protest the California Supreme Court's decision to uphold Prop. 8.

"I said, 'My God, we have to go, we have to go,' " he told the New York Times.

The idea is that the audience will follow. Broadway Impact, an activist organization Creel helped create, has arranged for free buses to take people from New York to the rally and back.

Lover of all things gay Lady Gaga is also taking to the streets of Washington on Sunday.

"This march is a call to action for all people from all over the country to gather to march to be visible as one and to speak out and demand full equal rights for all lesbian, gay, bisexual and transgendered citizens in all 50 states," she said in a video address. "If we see ourselves as free and equal people, then we need to act as free and equal people. Now is the time to act so get your ass to D.C. and lend your support. Lend your voice and demand to be heard. I hope to see you there."

WATCH: You can find out more about the National Equality March here.

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