“I must’ve spaced out when I signed up, because I really wanted my sn to be Ashreichem, as an allusion to the song. Ashreinu sounds like some organization or something, though it conveys the same idea.”
Oh…I thought it was meant as a reference to “ashreinu mah tov chelkeinu, umah na’im goraleinu, umah yafah yerushateinu” (by the way, D’veykus IV does a great rendition of that!)