The most anticipated–yet also most frustrating–aspect of large music festivals (especially one like Lollapalooza) is the abundance of performing artists.  With five stages spanning the majority of Grant Park (319 acres!), one can imagine planning a weekend schedule requires making compromises (this year more than 130 acts will perform).  This week’s PorchDrinking Playlist highlights what I believe to be the must-see acts of this year.