I told Smith the name of this song was "Hey Ho" and he said "so it's a greeting" and thus it is today's SOTD. I reversed the word order, so it's more of a surprised reaction to the presence of a ho, should you, cough, ever meet or know one.
The band is the Lumineers. Or possibly Lumineers The, given my inattention to detail sometimes.
It really does remind me of "Gold" from Once.
Song: "Ho Hey"
Artist: The Lumineers