Friday night local favorites Hot Day at the Zoo christen Gemstones, Lowell's newest music venue on Market Street above the Blue Shamrock. With a growing legion of fans, HDATZ continue to impress audiences up and down the east coast. Last month they played Johnny D's in Somerville nearly bringing down the house with their foot stomping, dance inducing rhythms and high octane live show. At the end of May, the band plays the Mountain Jam in upstate NY. In its fifth year, the Jam has become one of the most celebrated music festivals in the country making Rolling Stone's top ten list. This years line up includes the Allman Brothers, Michael Franti and Spearhead and Govt Mule. Hot Day take the stage Friday night, May 29. Three day passes are sold out but single night tix are still available. Should be a great weekend of music!