Earlier this week we posted about the upcoming Grandchildren show this Friday, and we couldn’t help but notice the promise in supporting act Son Step. This Philadelphia four-piece’s sound is hard to pin down, as they are constantly dabbling in various genres and sounds, but there is a definite air of experimentation, with elements of indie, pop, and even some garage-rock. Members are constantly trading instruments, giving each song its own feel. The group is incredibly tight, and they play a mean live show – just one more reason to get yourself to Underground Arts on March 1st. Below, watch a performance of their song “In Da Hot Tub” for Brighton Sound Sessions.