Oscars: Nicole Kidman surprises a tour bus full of fans on her way to the Academy Awards

In an adorable real life Hollywood moment, Nicole Kidman has surprised a bus full of unsuspecting tourists while on her way to prep for the Oscars.

Pulling up at a stoplight next to an 'Access Hollywood' tour bus, the down-to-earth Aussie rolled down her window and waved hello. 

"Hi, everyone," she said.

Screams of recognition and surprise followed as the realisation that an Oscar winner was greeting them quickly sank in.

"Oh my God," said one fan. "This is like a dream come true!"

"You look more beautiful in person," gushed another.

"I haven’t gotten my hair and makeup done yet," Kidman, 50, told them before blowing them a kiss and waving goodbye.

Nicole Kidman on the Oscars red carpet. Image: Getty

The Big Little Lies star posted the sweet exchange on Instagram, adding that she'd be taking over Vogue's Instagram Story for the day.

It's been a busy awards season for Kidman, who took out an Emmy and Golden Globe for best actress in a limited series for her portrayal of domestic violence survivor Celeste Wright in Big Little Lies.

While the Academy Award winner is not nominated this year, she'll be appearing at the 90th Annual Academy Awards as a presenter. The Oscars air on Nine from 12pm and stream on 9Now.