Anyone that is Jewish and went on birthright (SABABA!!!) probably still has "Jerusalem" stuck in their head because it was played on the bus approx. 5,000 times.
But NO! That's not him anymore. I mean, it's him, but it's not him. In 2011 Matisyahu began to no longer identify as Hasidic. He shaved his beard and cut his hair. Then we were left with a Matisyahu looking like this:
And most recently he was seen in Hawaii where he happened upon a performer singing his song "One Day" and joined in with him. Matisyahu was in full chilleisure clothing mode. The guy singing didn't even recognize him until the very end when Matisyahu was literally like, "I'm Matisyahu."