We all knew Ariana Grande, Tame Impala, Twenty One Pilots, and Childish Gambino were headling Lollapalooza but now we know what day we can watch them perform.

In case you didn't know, Lollapalooza is a four day festival in Chicago in Grant Park.

The festival runs Thursday, August 1 through Sunday, August 4. The lineup was announced last month and today we know who's playing and when.

Ariana Grande, arguably the biggest name to perform at Lollapalooza this year, will close the show, Sunday night, August 4.

Check out the rest of the daily Lollapalooza headliners.

Thursday, August 1

  • The Strokes
  • The Chainsmokers
The Chainsmokers Kick Off Three-Year Wynn Nightlife Residency
David Becker, Getty Images for Wynn Las Vegas
loading...

Friday, August 2

  • Childish Gambino
  • Tame Impala
Atlanta Season 2 Donald Glover 2018
FX
loading...

Saturday, August 3

  • Twenty-One Pilots
  • J. Balvin
FIJI Water At The 59th Annual GRAMMY Awards
Joe Scarnici, Getty Images
loading...

Sunday, August 4

  • Ariana Grande
  • Flume
ariana grande
Mike Coppola, Getty Images
loading...

Four-day passes are sold out but you can buy single day tickets but you better hurry. If the four days are gone, there's a very good chance the single days will be soon to follow.

Check out the full daily Lollapalooza lineup.

Sweet Lenny is the brand manager of 97ZOK and Operations Manager for Townsquare Media Rockford. Catch him afternoons 3 to 7 on 97ZOK. Follow him on TwitterInstagram and like his page on Facebook.