There was a moment during the Foo Fighters' second encore tune Saturday night, before a sold out Fenway Park, that seemed to encapsulate the band's appeal. As singer/guitarist Dave Grohl and the sextet roared through the snarling, pell mell rocker “Times Like These,” there was a melodic element that was positively Beatlesque.Sure, it was their typical hard rocking framework, straddling hard rock and metal, delivered at the kind of warp speed tempo that speaks to their [...]