Chicago’s Lollapalooza festival won’t announce its lineup until next week, but the organizers have been hinting at who might appear by posting ads on Chicago’s transit system. Those ads are usually a bit of plain text, featuring a lyric from a song that might belong to one of the acts playing the festival. As Consequence Of Sound reports, those ads are teasing the beginnings of what could be a pretty great festival bill. Thus far, they’ve included lyrics from Jack White, Sigur Rós, M83, Justice, the Weeknd, Bloc Party, Santigold, Twin Shadow, Die Antwoord, and Kimbra. There’s also a ton of speculation around bands like the Black Keys and the Shins, who seem to have gaping Chicago-sized holes in their touring schedules.