Road warriors Rascal Flatts set their summer agenda and update today with new, mostly amphitheatre dates for June, July, August and September. New show listings include June 13 outside St. Louis at Verizon Wireless Amphitheatre. July 27 in Bethel, NY, at Bethel Woods Center For The Arts. August 1 puts the band in Atlanta, GA, at Lakewood Amphitheatre, and September 13 has those rascally country stars in Mansfield, MA, at Tweeter Center For The Perf. Arts.

Peter White adds to his fall schedule with new dates for Connecticut, New York, Massachusets and California. New stops include October 24 (New Haven, CT), October 25 (Huntington, NY), December 2 (Allston, MA) and December 18 (Sacramento, CA).

Modest Mouse injects more dates into its summer tour plans. The latest update includes gigs in Council Bluffs, IA (June 4), North Myrtle Beach, SC (June 26), July 1 (St. Louis, MO) and July 2 (Cincinnati, OH).

And Cinderella kicks up its ruby slippers this summer with new June, July and August dates. Additions include Walker, MN (June 27), July 4 (Universal City, CA), July 21 (Clarkston, MI) and August 1 (Clearfield, PA).

During the first 90 minutes of biz we also updated the schedules for Flogging Molly, OneRepublic, The Little Ones, Fleet Foxes, DJ Shadow, Beres Hammond, Bootsy Collins, Martha Wainwright, Richard Elliot, Sammy Hagar & The Wabos and Rick Braun.

And that’s just a taste of things to come as all 1,538 tour researchers climb back into their saddles for another ride through the wild frontier of concert data. Don’t miss your Midday Update, scheduled for around 12 noon (PDT), from!