Bostonians beware: on May 31st, we are about to be under attack from legions of dirty hippies (and ex-hippies who have cleaned up their acts and gotten real jobs). It's true: in addition to Dave Matthews this year, Fenway Park will also play host to the first show of the hotly-anticipated reunion tour of legendary Vermont jam band Phish. Tickets, for those of you into that sort of thing, go on sale April 18 (next Saturday). Good thing the show is on a Sunday, otherwise we would be terrified. Press release after the jump: