The first obvious Loki song I encountered, was ‘Everywhere’ by Bran Van 3000. The lyrics, the happy feeling I get listening to it, I can vividly see Him dancing around in a field playing a woodwind instrument of sorts.
“And everywhere you came and left,
You came in the name of love
And left a wake of happiness and tenderness
And sweet conflict, sweet conflict”
love Sceithailm’s above depiction of Loki.