Four dads straight outta Utah, the Piano Guys have become an Internet sensation as their self-produced music videos have snagged some 500 million views. For their cover of “Let It Go,” the hit tune from the Disney flick Frozen, they sit at their player pianos and perform atop giant glaciers. They’ve made 40 videos since early 2011, blending classical music with pop. At tonight’s show, you can expect to hear songs from their latest album, Wonders. The concert begins at 8 p.m. at the State Theatre. Tickets start at $10. For $155, you can meet and greet the guys at the concert. (Niesel)