Photo of Radiohead's Thom Yorke by Rick Kern

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Just days until Lollapalooza unveils the lineup for its 25th anniversary, it appears Radiohead and Red Hot Chili Peppers are among those performing the Chicago fest.

The two acts will headline the event, as will LCD Soundsystem, according to Billboard, which cited industry sources with knowledge of the roster.

J. Cole and Lana Del Rey are also performing at the fest, which has been expanded from three to four days in celebration of its anniversary.

Set for July 28-31, the lineup will be officially announced on Tuesday (March 22), the same day tickets for Lolla go on sale.