Unlike most L.A. motorists, Kyack and his collaborators actively seek out the most congested sections of the highway. The tailgate sign tells other drivers how to tune in to the show's dialogue. Amy Walters/NPR hide caption

itoggle caption Amy Walters/NPR

Canadian singer Lindsay Sutherland Boal started out in opera before turning to cabaret. Andrew Alexander hide caption

itoggle caption Andrew Alexander

Step Up 3D will be distributed in several 3-D formats across the country -- as well as in conventional 2-D. K.C. Bailey/Summit Entertainment hide caption

itoggle caption K.C. Bailey/Summit Entertainment

Anthony Daniels poses with a C-3PO figurine and other Star Wars characters while promoting Star Wars in Concert. The British actor narrates the show. Eduardo Verdugo/AP hide caption

itoggle caption Eduardo Verdugo/AP

Roman Baca not only choreographed the ballet Homecoming, he also danced in it. In the second movement, Baca (second from right) plays an Iraqi dad during a scene where the Marines have an altercation with an Iraqi family. Brian Krontz hide caption

itoggle caption Brian Krontz

Miller played Sally, a waitress who became a Broadway sensation, in the 1929 film Sally. Warner Bros. hide caption

itoggle caption Warner Bros.

In Charenton, the Marquis de Sade directs a play-within-a-play about the French Revolution, performed by inmates of the Charenton Asylum, including Antonieta, a young baker fixated on Marie Antoinette; Napoleoncito, a young actor fixated on Napoleon; and Juana, a girl who believes she is Joan of Arc. Diana Taylor/Hemispheric Institute of Performance and Politics hide caption

itoggle caption Diana Taylor/Hemispheric Institute of Performance and Politics

Actor Danny Kaye (left) clowns around with composer Frank Loesser while rehearsing a song for the 1952 film Hans Christian Andersen. Gjon Mili/Time Life Pictures/Getty Images hide caption

itoggle caption Gjon Mili/Time Life Pictures/Getty Images