Comedian Chris Rock launched his return stint as Oscar host on Sunday by immediately and unabashedly confronting the racially charged elephant in the room — the furor over the all-white field of performers nominated for Hollywood's highest honors.

In an opening monologue peppered with biting, no-holds-barred commentary about what he described as "sorority"-style discrimination pervading the film industry, Rock set the stage for a night of running gags that repeatedly returned to themes of racial politics.

In doing so, he transformed a glittering awards show long known for self-reverential pomp into a 3½-hour live ABC telecast punctuated by pointed satire riffing on issues of inclusion and diversity raised critics on social media and elsewhere.