The Mars Volta have announced preliminary dates for their North America tour with additional dates expected to be announced soon. April 22nd San Diego, CA - Rimac April 25th Austin, TX - Music Hall April 26th Houston, TX - Verizon Wireless April 28th New Orleans, LA - Orpheum Theater April 29th Atlanta, GA - Tabernacle May 01st Philadelphia, PA - Electric Factory May 05th New York, NY - Roseland May 06th New York, NY - Roseland May 07th Providence, RI - Lupos May 09th Worcester, MA - Palladium May 10th Boston, MA - Avalon May 12th Montreal, QC - Metropolis May 13th Toronto, ON - Koolhaus May 15th Detroit, MI - State Theater May 16th Chicago, IL - Riviera May 19th Minneapolis, MN - Wilkins