Plant, Krauss add a second leg

This is part of their first international tour together in almost 15 years after releasing "Raise the Roof" last year. The tour gets underway June 1 in Canandaigua, N.Y. Other dates will hit New York City's Forest Hills Stadium, Bonnaroo and the Glastonbury festival in England

Plant and Krauss previously released "Raising Sand" in 2007, winning Grammys and much acclaim.

New tour dates are:
Aug. 15 - San Diego, CA - The Rady Shell at Jacobs Park
Aug. 17 - Santa Barbara, CA - Santa Barbara Bowl
Aug. 18 - Los Angeles, CA - The Greek Theatre
Aug. 20 - Stateline, NV - Lake Tahoe Outdoor Arena at Harveys
Aug. 21 - Berkeley, CA - Greek Theatre at UC Berkeley
Aug. 23 - Napa, CA - Oxbow RiverStage
Aug. 25 - Bend, OR - Hayden Homes Amphitheater
Aug. 27 - Troutdale, OR - McMenamins Edgefield
Aug. 28 - Redmond, WA - Marymoor Park
Aug. 30 - Salt Lake City, UT - Sandy Amphitheater
Sept. 1 - Morrison, CO - Red Rocks Amphitheatre
Sept. 3 - Grand Prairie, TX - Texas Trust CU Theatre at Grand Prairie
Sept. 4 - Austin, TX - Moody Amphitheater at Waterloo Park