Sunset Boulevard is a musical with book and lyrics by Don Black and Christopher Hampton and music by Andrew Lloyd Webber. Opening first in London in 1993, the musical has had several long runs internationally and also enjoyed extensive tours, although it lost money because of its extraordinary running costs. A star vehicle, many well-known actresses have played the leading character, Norma Desmond, and the show has seen its share of legal battles.

Based on the 1950 film of the same title, the plot revolves around Norma Desmond, a faded star of the silent screen era, living in the past in her decaying mansion on the fabled Los Angeles street. When young screenwriter Joe Gillis accidentally crosses her path, she sees in him an opportunity to make her comeback to the big screen. A unrequited romance and tragedy follow.