Sesame Street's past musical guests have included Wynton Marsalis, Yo-Yo Ma, James Galway, Itzhak Perlman, and Plšcido Domingo.
The Chinese-born Lang Lang burst to prominence in 1999, at age 17, when he was a last-minute substitute for Andr_ Watts at the Ravinia Festival. He has since become an enormously popular ambassador for classical music, playing with leading orchestras in the United States and around the world.