From the 1990 album “Goo,” this is Sonic Youth’s non-ironic tribute to Karen Carpenter. I can’t say for sure whether this was inspired by Todd Haynes’ legendary underground short “Superstar,” but the spirit is the same. Both “Superstar” and “Tunic” may seem snarky considering that the artists involved came from the underground, but the sentiment is anything but.  Which is why the song still packs a punch nearly 25 years later.