Chance The Rapper is the grand marshal of the 2017 Bud Billiken Parade. View Full Caption facebook.com/chancetherapper

CHICAGO — Chance the Rapper is giving away 30,000 backpacks to Bud Billiken paradegoers on Saturday.

On Twitter Tuesday, the rapper announced plans to give away backpacks.

@SocialWorks_Chi and @StateBags will be giving away thirty thousand (30,000) stuffed backpacks at the Bud Billiken & #BBBash on Saturday. pic.twitter.com/YXqp5weyPL — Lil Chano From 79th (@chancetherapper) August 9, 2017

What will be inside the backpacks has not been revealed.

Earlier Wednesday, parade spokeswoman Kristal Davis said Chance planned a big, secret giveaway at the parade.

"We do have a big announcement on parade day," Davis said. "Whatever he has planned on Saturday, the giveaway's related to that."

In a March post on Instagram, Chance said he was "coordinating" the parade as its grand marshal.

"You know what that means. I'm putting it together," Chance said. "It means me and my friends gonna pull up, we gonna do some giveaways."

Otherwise, Chance appears to have been mum on his plans for the parade. He encouraged people to take their younger relatives to the parade via a tweet Tuesday: "Take all your lil cousins to the Bud cuz that what big cousins do."

Chance has become known for his charitable work in the city, donating $1 million to Chicago Public Schools in March and starting SocialWorks, an organization geared toward empowering Chicago's students.

The parade kicks off 10 a.m. Saturday at Oakwood Boulevard and King Drive. It ends at Garfield Boulevard and Elsworth Drive. There will be giveaways and treats at Washington Park afterward.