These four designs, printed in booklet form, honor musical theater in the United States in the 100th anniversary year of Broadway. The four stamps represent some of the most famous and successful musical collaborations in American theater.

My Fair Lady was adapted by Lerner and Loewe from George Bernard Shaw's Pygmalion. The show debuted on Broadway in 1956. In the musical Eliza is transformed, thanks to Professor Higgins, from a street -corner flower girl to an elegant, sophisticated young lady who is passed off as a princess at a party.

Oklahoma! is based on a 1931 play, Green Grow the Lilacs. It was converted into one of America's flawless unions of story and song by collaborators Rodgers and Hammerstein. Oklahoma! celebrated the 50th anniversary of its Broadway debut in 1993.

The music and lyrics of George and Ira Gershwin are featured in the three-act folk opera Porgy and Bess. The musical portrays the lives of black Americans during the Depression. The story continues to track the twists and turns of life during these times and features such memorable tunes as Summertime, I Got Plenty O'Nuttin, and My Man's Gone Now.

Show Boat is based on a novel by Edna Ferber and was adapted musically by Oscar Hammerstein II and Jerome Kern. The play was heralded as the outstanding commercial and artistic triumph of the 1927-1928 Broadway season. Set in the 1880s heyday of traveling showboats, the action follows the lives of the main characters over 50 years.