Rev. Al Sharpton  led an anti-Oscars rally prior to Sunday's ceremony and urges advertisers to pull back, amid controversy over nominees' lack of diversity. "We will put the Academy on notice," said.

BREAKING: Chris Rock: "You're damn right Hollywood is racist"

MORE: Steve Harvey's challenge to Oscars host Chris Rock

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Credit: Getty Images/AJC file photos

Critics swiftly began blasting the Oscars after this years nominations were announced, over the lack of diversity among acting nominees. #OscarsSoWhite quickly started trending again.

Sylvester Stallone, who claimed a best supporting actor Globe trophy for his role in "Creed," is up for a similar Oscar. The movie's black star and director, Michael B. Jordan and Ryan Coogler, were not among nominees for either a Golden Globe or Oscar.

Idris Elba was up for a supporting-actor Globe for "Beasts of No Nation" but received no Oscars nod.

This tweet succinctly captured the sentiments of many:

Rock seems primed for a big night: