The red carpet is out and the countdown is on.

Oscars announcer Randy Thomas has practiced her script.

"I'm not allowed to talk about anything that I see," Thomas said. 

Hair and makeup is bracing for those last minute touch ups. 

"Sometimes we do a touch up in less than thirty seconds."

And the centerpieces for the Governor's Ball, the Academy's post Oscars celebration are being arranged.

"Everyone is working on overtime because we've got to get it all done."

The pressure is building not just for those behind the scenes. "It's a good feeling. I mean I'm not gonna lie," Spike Lee said. 

But also for the celebrities who are waiting to see if they will win Hollywood's coveted prize.

The 91st Academy Awards will be different this year.

"It's somewhat unchartered waters but it's not like awards shows haven't gone host-less in the past," Connelly said.

For the first time in three decades, there's no host, and producers are aiming to announce winners in all 24 categories in just three hours.

The competition is stiff this year, with The Favourite tied with Roma for ten nominations each.

Critics say keep an eye on Rami Malek for Best Actor and Glenn Close for Best Actress

But when it comes to Best Picture, it's just too close to call. 

"Green Book, Bohemian Rhapsody, Black Panther, Roma all those have won an award that looks like Best Picture. They have every bit of a chance," Connelly said.

We do know some A-listers will be involved in the show and the winners will have to move fast. The 90-second rule will be in effect. They'll just have 90 seconds to get to the stage and finish their acceptance speeches.