The WARMfest organizers are kicking off a series of Second Sunday concerts to get Broad Ripple park warmed up and ready for September’s main event. This one features Hero Jr. and The Last IV along with some free yoga, a Zumba flashmob and a TRX/circuit/spin class. Sound like too much exertion? Plop down on the ground with the kids for a pre-show set by Ruditoonz. All-ages.