WXPN's XPoNential Fest 2015 will be wrapping up its weekend of music and family events today. Opening things off will be a pair of local up-an-comers in the ramshackle, youthful exuberance of the Pine Barons and the polished indie-pop feels of Cheerleader. They'll be making way for national touring powerhouses like Courtney Barnett and The Long Bellow. Once again, the sun will be shining down on everyone so grab a blanket and find your relaxing, comfy spot on the waterfront. Wiggins Park/Susquehanna Bank Center (Camden), 2 Riverside Dr./One Market, 12pm, $30 (XPN Members)/$60 (Public) + $25 (Grace Potter/George Ezra for those w/o a 3-day pass), All Ages - H.M. Kauffman