John Williams surprised fans at the Hollywood Bowl with an encore performance of the "Imperial March" under the baton of a conductor.

Legendary composer John Williams surprised guests at the Movie Maestro:
Tribute to John Williams festival, which will be held at the Hollywood Bowl from September 4 to 6, by appearing at the event and conducting the Imperial March for an encore from a wheelchair. Williams performed on both Friday and Saturday nights and is expected to attend the festival today as well.