The folks over at Lollapalooza are making you work Wheel Of Fortune style to figure out their 2010 lineup. So far the “O”‘s are provided. I think I spotted Bon Iver Hot Chip in there, but definitely no OOIOO. Test your puzzle skills/indie-rock knowledge at lollapalooza.com. The festival’s scheduled for 8/6-8/8 in Grant Park, Chicago.