Kelly Clarkson’s summer tour has been postponed before it even started. Clarkson fired her management earlier this week, and with ticket sales for the tour not being what they should have been, her reps are looking to re-book another tour at smaller venues. Ouch. If an artist of Clarkson’s magnitude is having trouble moving tickets, it just goes to show you how difficult it is to compete for anyone’s entertainment dollar these days. Her new album, My December, is due out on June 26, so don’t expect it to take long for Clarkson’s peeps to have new tour dates in place.

Australian rockers Silverchair hasn’t toured the US in almost ten years, but their latest album, Young Modern, has gone double platinum Down Under, prompting a return here. The tour kicks off in San Diego on July 13 and runs through August 5 in Minneapolis.

Bon Jovi is having special guests perform with them on their MTV Unplugged series, and the first official guest announced is the All-American Rejects. Nick Wheeler of All-American Rejects had this to say about the event: “Holy Crap!”

Justin Timberlake will be joined by rock band Good Charlotte this summer for an arena tour beginning August 6 in Memphis and running through September 17 in Los Angeles. Good Charlotte is going out in support of their new album, Good Morning Revival.

Guerilla Union’s Rock The Bells North American Tour will kick off July 26 in Mansfield, Massachusetts. As was announced recently, the shows will be headlined by Wu-Tang Clan, Nas, and Rage Against the Machine, and will be joined by Cypress Hill, UGK, Talib Kweli, Pharoahe Monch, David Banner, Immortal Technique, and Jedi Mind Tricks. In addition, the show that Rage was set to headline on August 11 in Southern California has been moved from the NOS Events Center to the Hyundai Pavilion at Glen Helen. Dates are as follows:

DATE CITY VENUE
Thu 7/26 Mansfield, MA Tweeter Center
*Sat 7/28 New York, NY Randall’s Island
*Sun 7/29 New York, NY Randall’s Island
Thu 8/2 Atlanta, GA Hi-Fi Buys Amphitheatre
Fri 8/3 Charlotte, NC Verizon Wireless Amphitheatre
Sat 8/4 Miami, FL Bayfront Park Amphitheatre
Tue 8/7 Dallas, TX Smirnoff Music Center
Wed 8/8 Houston, TX Reliant Park
*Sat 8/11 San Bernardino, CA Hyundai Pavilion at Glen Helen
Sun 8/12 San Diego, CA Coors Amphitheatre (parking lot)
*Sat 8/18 San Francisco, CA McCovey Cove (parking lot)
Tue 8/21 Salt Lake City, UT TBD
Wed 8/22 Denver, CO Red Rocks Amphitheatre
Sat 8/25 Minneapolis, MN TBD
Sun 8/26 Chicago, IL Charter One Pavilion
Wed 8/29 Detroit, MI DTE Energy Music Theatre
Thu 8/30 Toronto, Ontario TBD
· denotes festival dates with Rage Against the Machine.

Southern Cal boys Saosin are true road warriors, and haven’t stopped touring since their Capitol Records debut last September. They will hit the road again this month and then on July 25 will continue touring as part of the Projekt Revolution Tour. All confirmed dates are:

Tour dates with w/ Poison The Well, Receiving End of Sirens, Fiore

6/29/2007 The Dome Bakersfield, CA
6/30/2007 University Theatre Las Vegas, NV
07/01/2007 In The Venue Salt Lake City, UT
07/03/2007 Sokol Underground Omaha, NE
07/04/2007 The Picador Iowa City, IA
07/11/2007 Mr. Small’s Theatre Pittsburgh, PA
07/18/2007 The Garrick Winnipeg, Canada
07/19/2007 The Distrikt Regina, Canada
07/21/2007 MacEwan Hall Calgary, Canada
07/22/2007 Starlite Room Edmonton, Canada

Projekt Revolution:

Wed Jul 25 TBA
Fri Jul 27 Marysville, CA Sleep Train Amphitheatre
Sat Jul 28 San Bernardino, CA Hyundai Pavilion
Sun Jul 29 Mountain View, CA Shoreline Amphitheatre at Mountain View
Tue Jul 31 TBA
Wed Aug 01 Phoenix, AZ Cricket Pavilion
Fri Aug 03 Selma, TX Verizon Wireless Amphitheater
Sat Aug 04 Dallas, TX Smirnoff Music Centre
Sun Aug 05 Woodlands, TX The Cynthia Woods Mitchell Pavilion
Tue Aug 07 Atlanta, GA HiFi Buys Amphitheatre
Wed Aug 08 Charlotte, NC Verizon Wireless Amphitheatre Charlotte
Fri Aug 10 West Palm Beach, FL Sound Advice Amphitheatre
Sat Aug 11 Tampa, FL Ford Amphitheatre
Mon Aug 13 Raleigh, NC Walnut Creek Amphitheatre
Tue Aug 14 Virginia Beach, VA Verizon Wireless Amphitheater
Wed Aug 15 Wantagh, NY Nikon at Jones Beach Theater
Fri Aug 17 Cuyahoga Falls, OH Blossom Music Center
Sat Aug 18 Darien Center, NY Darien Lake Performing Arts Center
Sun Aug 19 Bristow, VA Nissan Pavilion
Tue Aug 21 Toronto, ON Molson Amphitheatre
Wed Aug 22 Clarkston, MI DTE Energy Music Theatre
Fri Aug 24 Mansfield, MA Tweeter Center for the Performing Arts
Sat Aug 25 Camden, NJ Tweeter Center at the Waterfront
Sun Aug 26 Hartford, CT New England Dodge Music Center
Tue Aug 28 Syracuse, NY NY State Fair
Wed Aug 29 Holmdel, NJ PNC Bank Arts Center
Fri Aug 31 Noblesville, IN Verizon Wireless Music Center
Sat Sep 01 Tinley Park, IL First Midwest Bank Amphitheatre
Mon Sep 03 Englewood, CO Coors Amphitheatre

The Beastie Boys just keep on going. The band will release their new instrumental album, The Mix-Up, on June 26, and then hit the road later this summer. Here are the confirmed dates so far:

8/1 Philadelphia – Festival Pier
8/6 Boston – Bank of America Pavilion
8/8 New York – Summerstage
8/9 Brooklyn – McCarren Pool
8/16 Denver – Red Rocks
8/23 Santa Barbara – County Bowl
8/25 Berkeley – Greek Theater