One hell of a concert is slated for the Matt Knight Arena March 4. Headlining is Passion Pit, the indie-rock band whose album Gossamer was on many-a-top-ten list for 2012. Then there's Matt and Kim whose single "Daylight" was one of the songs of the summer in 2009. They also released Lightening in 2012. But there's one more gem on the bill: the the punchy, intoxicatingly fun Icona Pop. The DJ and synthpop duo hails from Sweden and their song "I Love It" was just featured in the Jan. 27 Girls episode "Bad Friend."