Sarah Jessica Parker joins other Annies for 40th anniversary

— -- The classic musical "Annie" is celebrating its 40th anniversary, and some of the show's former stars are coming together for the milestone.

Nearly 20 actresses, including Sarah Jessica Parker, have played the title role of Annie since the rags-to-riches story opened on Broadway in 1976.

The reunion, which airs tonight on "Inside Edition," is coupled with rare vintage singing clips of Parker and others like Andrea McArdle, Broadway's first Annie. What are they singing? Obviously, the hits "Tomorrow" and "It's the Hard Knock Life."

"[I] watched Andrea and assumed I would never be in 'Annie,'" Parker, 51, says in a teaser clip. "I would certainly never play Annie, and I wouldn't be part of this sort of magical phenomenon that washed over Broadway."

The actresses said they were very thankful for the chance to meet one another after four decades of the musical's success.

The show even brought in Taylor Richardson, the final Annie in the most recent Broadway revival, which closed in 2014. Watch the teaser below.