After just announcing the festival dates a couple days ago, Chicago’s Pitchfork Music Festival has now confirmed a few artists for their three-day lineup, including some heavy-hitters like LCD Soundsystem, Modest Mouse, and Pavement.

Tickets go on sale at noon CT today at TicketWeb, with single-day passes for $40, and three-day passes for $90 (no two-day passes this year).

Pitchfork Festival 2010 Initial Lineup:

Friday, July 16:
Modest Mouse

Saturday, July 17:
LCD Soundsystem
Here We Go Magic

Sunday, July 18:
St. Vincent
Lightning Bolt
Cass McCombs
Sleigh Bells