In 1975, Lee was invited by Michael Bennett to participate in the workshops from which "A Chorus Line" was developed. The character of Connie Wong was, in large part, based upon her life. Her bubbly and vibrant energy and "dynamo" personality were reflected in her brief solo, although Lee reports her mother disliked her daughter's singing. Lee laughingly blamed the notes written for her to sing. (Her "Four foot, ten" solo, long missing from the album, was finally heard on a re-release in the late 1990s). Along with the cast, she won the 1976 Theatre World Award for Ensemble Performance for the show. Over the years she has directed or choreographed more than thirty-five international productions of the musical, including the most recent Broadway revival in 2006. Fifteen years later, along with cast member Thommie Walsh and Robert Viagas, she documented the evolution of "A Chorus Line" in the book "On the Line: the Creation of A Chorus Line", published in 1990. The 2008 feature documentary "Every Little Step" chronicles the casting process for the 2006 Broadway revival of A Chorus Line, which Lee choreographed. The film also tells the saga of the original production, using old film clips, excerpts from the original sessions Bennett taped with chorus kids, and revealing interviews with original collaborators and performers, including Lee herself.