A Star Is Born (1954)
Norman Maine is a former matinee idol whose career is in the early stages of decline. When he arrives intoxicated at a function at the Shrine Auditorium, his studio's publicist attempts to keep him away from reporters, and after an angry exchange, Norman rushes away and bursts onto a stage where an orchestra is performing. Singer Esther Blodgett takes him by the hand and pretends he is part of the act, turning an embarrassing and potentially destructive moment into an opportunity for the audience to greet Norman with applause.