With just about three months to go and ticket sales already well underway, a lineup has finally been revealed for Lollapalooza's 20th anniversary. Eminem, Foo Fighters, Coldplay and Muse will headline the August 5-7 festivities in Chicago, IL.

Other acts atop the billing include My Morning Jacket, Deadmau5 and A Perfect Circle. The full lineup — with more than 120 performers and DJ acts — is available below. Exact performance dates and times have not yet been announced.

Coldplay has cancelled its July 27 show at the Nikon at Jones Beach Theater in Wantagh, NY, just a few days after it was announced. Instead, Coldplay will perform that night at another Live Nation venue in New York, the Saratoga Performing Arts Center in Saratoga Springs. The date is actually a rescheduling of Coldplay's original May 27 SPAC show, which was postponed last week due to an unspecified illness within the band.

Tickets for the concert at Nikon at Jones Beach Theater never went on sale. Tickets for the band's original SPAC date on May 27 will be accepted at the rescheduled July 27 date. Refunds will be available from point of purchase.

Coldplay fans are in for a special treat. Beginning with the band's Viva La Vida summer tour, which kicks off May 15, and continuing through every show performed in 2009, concertgoers will receive a free, live CD called "LeftRightLeftRightLeft."

The CD will also be available as a free download during this time at the group's official Web site, though physical copies will only be available at performances. The free giveaway does not include Coldplay's festival dates.

Coldplay and Beastie Boys will headline the fourth edition of the Osheaga Music and Arts Festival in Montreal, QC, from August 1-2. Coldplay will play on August 1, followed by Beastie Boys on August 2.

Tickets go on sale April 3 at the Bell Centre box office and through the official festival Web site. Tickets are priced differently for the two days which is rare for festivals: August 1 is $75, August 2 is $65, and a weekend pass is $125. Face value of tickets does not include applicable service fees.

Chart-topping titan Coldplay will start the next leg of its North American tour earlier than expected with a 24-city spring jaunt. The trek kicks off May 15 at Cruzan Amphitheatre in West Palm Beach, FL, and wraps temporarily on June 20 at General Motors Place in Vancouver, BC.

Highlights for the spring outing include a May 17 gig at Lakewood Amphitheatre in Atlanta, GA, a May 26 event at Susquehanna Bank Center in Camden, NJ, a June 6 concert at Sommet Center in Nashville, TN, and a June 15 show at MTS Centre in Winnipeg, MB, among other dates. Ticket sales for select dates begin over the next two weekends.