this summer, it was announced Wednesday morning.It's the first summer tour for Matthews since 2010. He's set to perform in Bristow June 16.He'll be promoting a new album that'll be released sometime this year, a follow-up to 2009's "Big Whiskey and the GrooGrux King."Tickets go on sale March 9; price is not yet available. Gary Clark Jr., whoin December, is opening.