Sonic Youth -- who are opening this summer for Pearl Jam (ouch! ... OK, I take back my misguided insult Ten Clubbers; it's not like SY's opening for Atreyu.) -- visit Stars Hollow today to tape a cameo for the WB drama's season finale. In the Gilmore episode, airing 5/9, Thurston, Kim, and daughter Coco (on shakers, awww) will perform ...