Loving Pokey LaFarge and the South City Three, who I discovered via this Tiny Desk Concert from NPR (above).
I know some folks find this to be a bit of a “shtick” or “gimmick” but I love the 30s/40s look and sound – he even leans his head back to sing and forms his mouth like an old time radio singer. But then, I was a huge fan of Squirrel Nut Zippers too (especially hot and the Inevitable, which evoked similar distaste in some folks for being too retro.
Some other video embeds below. Check out Middle of Everywhere, their latest album.